"... I have also heard that in Europe, there are more priests who say that the NO Missal can be licit if it is said strictly according to the rubrics, which would align with Bp. Fellay's statement in the Doctrinal Declaration that the "Rite of Paul VI was legitimately promulgated."...
Fr Gregory Hesse R.I.P., said the New Ordo Missae is illicit, simply because it harms the Faith. A law that harms the Faith is automatically illegal...illicit, and cannot be enforced.
Are you sure you meant " can be licit" and not "can be VALID"? The Trad world has for the most part agreed that the N.O. mass could be valid ( valid priest, said in Latin, good intention, and all the due respect of the sacrament etc. ) The problem is the translations, erroneous intentions and clown mass etc.
My friend in Germany 1990s, saw a female ministress? actively involved in a N.O. mass that was t0ple** ! Things like that invalidate the sacraments...cause scandal, corrupt morals. Shocked, he left the N.O. and found the SSPX.
Remember JP II in the photo, where a woman is reading the epistle, but was also tople**? The photo is in the book 'Peter Lovest thou Me?, written by my friend Daniel Le Roux, former seminarian Econe, who is today a layman and an internationally recognized mathematician. He asked ++L if the photo should be printed in his book...to which the Archbishop replied: 'Yes. Publish it...this is the reality.'
+L always said that the N.O. mass could be valid in certain cases.
+Fellay didn't tell the truth when he used the term "legitimately promulgated". He doesn't understand the legal distinctions. POPE St Pius V promulgated the Latin Rite Mass etc...therefore only a POPE (equivalent status in authority) could therefore promulgate any changes in a future alternate mass. Fr Hesse said that Paul VI never signed off the N.O. mass, but only some "new Vatican Office" cardinal (his signature is in the Missal 1969, which I don't have!) Yes, Pope Paul VI wrote the 'Constitutione Missale Romanum', April 3, 1969 but this can't / doesn't of itself, abrogate Quo Primum.
Under BXVI, a study concluded the same: that the Tridentine Mass was never abrogated>Summorum Pontificuм 2007.
I admit I don't know much about Canon law etc. ; I just listen to Fr G Hesse, canon lawyer. If you want a reference to that conference, I would dig it up.
Now, with the latest Declaration of Faith from Fr. P, should anyone still promote the upcoming Consecrations? The hope they get exco as proof of their holding fast to Tradition? State of necessity?
I am more confused about which position to hold...Today the neoSSPX goal posts are, as we say in French, flou, (blurred), so flouid.!..! punt intended.

St Pius X, born June 2, in 1835 AD.
St. Pius X, pray for us.