Who is in that avatar that "469 Pipefitter" uses with those YouTube postings? 

I was actually thinking the same thing. Who are these people?

Looks like an old photo of Pabs and his wife/girlfriend from about 25 years ago.

Pablo told me it was his wife.  Well, his legal ex-wife but he still considers her his wife.  Funny he would say that and yet treat the Blaszak residence as his own, walking in at all hours of the day and night, drinking with Mrs. Blaszak, while she was still married but noticing with her husband, to all hours of the night. 

Well, let's just say this:

My understanding is that when the SSPX receives a refugee from the conciliar church, it conducts an investigation into the priest's ordination (which in turn evolves into an investigation of the consecrating bishop).  

In the absence of a recording of the ordination, where such a bishop is known to habitually violate the form of the sacrament (among other reasons), the SSPX would probably (at least formerly) conditionally ordain.

That modus operandi seems to imply that they believe an invalid sacrament in one instance could imply invalidity for the same reasons in other instances.

So my answer to your question is a big fat "maybe" (i.e., I am not sure), but I am inclined to say yes, with a big asterisk*

* Because perhaps his mangling was the result of a new eye problem, whereas before he was very careful and precise?

If his mangling of the essential words was just caused by a new health or eye issue that didn't exist during previous ordinations, then I think it might be safe to say there aren't reasons to let this botched attempt at consecrating reflect upon previous ordinations.  

It seems, though, that this recent failure was due more to general incompetence and negligence.  It appears he's not trained and competent enough to be doing what he's doing, and that he was negligent in taking the proper care to learn the essential form.  This was the most important and serious thing he could ever attempt to do as a bishop, and he didn't even practice enough to make sure it was done validly.  This would seem to reflect on his two previous ordinations, and be reason to doubt whether he was competent and careful enough in those.  If Webster's own orders are valid, I'd still want to see video of any attempts he made of ordaining priests before I was certain I could receive valid sacraments from them.

I sure wish the 4 bishops would speak up regarding this mess.

This is imperative surely!

Whether it was invalid or a valid forced consecration, this entire operation does not have the blessings of God. Pfeiffer has been employing evil tactics, enabling evil men, and doing everything in his power for his power for the better part of a decade. He's an evil man. Avoid, get out, stay away, don't go near... caveat fidelis!

Absolutely correct.

Can.  1044 §1. The following are irregular for the exercise of orders received:
2/ a person who has committed a delict mentioned in ⇒ can. 1041, n. 2, if the delict is public;

Can.  1041 The following are irregular for receiving orders:
2/ a person who has committed the delict of apostasy, heresy, or schism;

Fr. Pfeiffer said Webster is a heretic.

Can.  1045 Ignorance of the irregularities and impediments does not exempt from them.

Can. 1047 §2. Dispensation from the following irregularities and impediments to receive orders is also reserved to the Apostolic See:
1/ irregularities from the public delicts mentioned in ⇒ can. 1041, nn. 2 and 3

Seems to me Webster had no right to confect any sacrament.  

I called Pfeiffer on the phone and he seems to have had a double standard with Webster where he regarded him as Catholic

Of course he did.  
He considers Moran Catholic, too.
The end always justifies the means in Fr. Pfeiffer's mind.

I don’t think he was raised that way, but maybe he was a childhood liar and it wasn’t caught, so it developed into a vice.  PTM encourages him in wrong-doing.