http://sspx.org/en/content/29002

The validity of SSPX Marriages
From now on, just as we no longer have to invoke an extraordinary jurisdiction to hear confessions validly, we no longer have to invoke the state of necessity to validly marry couples, unless the bishop opposes the new provisions and refuses the delegation requested by the pope.
This does not mean that the state of grave necessity has come to an end, but only that the authorities of the Church no longer refuse to grant Tradition some means of development. The pre-conciliar Mass was recognized in 2007 as never having been abrogated. The unjust excommunications of the bishops of the Society were lifted in 2009. The non-recognition of the valid ministry of SSPX priests in the sacrament of penance came to an end in 2015. The alleged irregularity of the Society priest, the authorized witness to the sacrament of marriage, has now been lifted, for the good of the spouses. 
However, just as the sacrament of penance was not invalidly conferred by the priests of the Society of St. Pius X before 2015, neither were the marriages celebrated without the official delegation of the local bishop or parish pastor.
Indeed, Church law states that in order to be valid, a marriage must be celebrated before the parish priest or his delegate, and in the presence of at least two witnesses (1917 Code, canon 1094; 1983 Code, canon 1108). But the priests of the Society of St. Pius X are not parish priests. That is why some try to pretend that, without a delegation, a priest of this society cannot receive marriage vows. Such a marriage would be invalid because of its lack of canonical form.
But the same Church law also provides for the following extraordinary situation (1917 Code, canon 1098; 1983 Code, canon 1116): “If a person competent to assist according to the norm of law cannot be present or approached without grave inconvenience.” If this situation is likely to last at least one month, then the Church declares valid a marriage celebrated before only the witnesses. If a non-delegated priest can be present, he must be called upon to receive the vows. This legislation is a simple application of the fundamental principles of Canon law: The supreme law is the salvation of souls, and The sacraments are for men who are well-disposed.
And if by chance there still remains any doubt as to this extraordinary situation, we answer that in cases of doubt, the Church gives supplied jurisdiction (1917 Code, canon 209; 1983 Code, canon 144). So all doubt is removed, and the marriages celebrated in the Society of St. Pius X, even without a delegation, were most certainly valid, because of the state of necessity.
The State of Necessity Remains
This state of grave necessity in the Church has not disappeared. This is not to deny the terrible reality.

And here I thought the SSPX was canonically established as a missionary order.

Missionaries do not need approval of anyone to administer any sacrament.

Furthermore, priests do not administer the sacrament of matrimony.  He does not even need to witness for the couple to have a valid, legitimate, catholic marriage.  He is there ONLY as a witness and to bless the marriage (which can be done afterwards).

https://remnantnewspaper.com/web/index.php/headline-news-around-the-world/item/3807-sspx-and-the-novus-ordo-a-new-spirit-of-cooperation

Remnant Moderator .  • 2 hours ago
"At the time of this posting we did not have confirmation as to where the mass was celebrated. It has since been confirmed by the groom, who informed us that the SSPX priest did in fact offer the traditional Latin Mass at the Novus Ordo church, and we have since added that detail. Far from trying to hide this fact, it offers further indication of a cooperation between the Society in the mainstream church which heretofore was unheard of. This is not to suggest that said cooperation is intrinsically evil in an of itself, of course -- but newsworthy? Indeed! If nothing else, here we have a case of a Novus priest allowing a SSPX priest to come into his church and offer the TLM--something which a few years ago would have been absolutely unthinkable from all sides."

  I have never trusted Mr. Matt.

even though he has attended his Indult Masses for years in nearly the same neighborhood as a decent sized SSPX chapel.

Nevermind.

From groom of the Canadian wedding as shown on the SSPX http://sspx.ca/en/news-events/news/clarification-saskatchewan-wedding

In response to some of the back and forth from here : https://remnantnewspaper.com/web/index.php/headline-news-around-the-world/item/3807-sspx-and-the-novus-ordo-a-new-spirit-of-cooperation

The groom says:
"We understand that the Society has followed this same procedure for many individual cases long
before these directives were published anyway; actual SSPX parishioners will know that."

I attended sspx masses for 25 years and I have NEVER hear such a thing.  I would extend an invitation to this young man to provide examples of his claim.

The remnant?  Don't trust it.  Not for a LONG time.

Observations from Last Tradhican

1) ALL the couples married by the SSPX in the last 50 years did not think that "Neither of us were willing to weaken our marriage bonds by operating outside proper regulations", because the SSPX told them that their marriage bonds were solid as a rock and operating inside proper regulations. Everything changed in the SSPX.

The sspx used to operate as missionaries, which is how the SSPX was canonically formed.

They no longer want to be missionaries, with chapels and congregations.
Now they want to be pastors with parishes.

The growing sspx annulment problem is due to 2 things:
1. The NO chooses to not recognize sspx marriages and the SSPX is cooperating.
2. The devil is working on the selfishness of sspx married spouses.  They see an "out".

What baseless speculation is he talking about?

The fact that SSPX priests are now leading young impressionable couples to get married in the NO?

I don't know how that is "baseless speculation" when we have the photo proof put up publicly for all to see, as well as the groom's own admission. 

Again, what is he calling baseless speculation? 

Mercy!  Get a hold of yourselves!  The Sacrament of matrimony consists in the mutual expression by both contracting parties of their free consent to take each other as husband and wife.

This is the "main act" in the marriage ceremony.   Without it, no marriage takes place.  After this mutual consent is expressed, even if something should interrupt the rest of the ceremonies, the couple are validity married.  The ministers of the sacrament of  matrimony are the contracting parties themselves, the  groom and bride.  The priest is the witness authorized by the Church to be present and bless the union. Page 338-339 of My Catholic Faith by Fr. Morrow

All of those married, are married and there is no annulments which is foolish.

As you can see, with the changes, SSPX is Titanic! at this point.