For me the baptism of desire is invisible. I assume it is the same for you.
Yet the Vatican Curia has been interpreting Vatican Council II with the baptism of desire and being saved in invincible ignorance as being visible.So Vatican Council II was a rupture with the dogma extra ecclesiam nulla salus ( Feeneyite). It was a break with the Syllabus of Errors and so a rejection of the old ecclesiology.A new ecclesiology, a new theology was now created.
It is this interpretation of Vatican Council II that Archbishop Guido Pozzo wanted the SSPX to accept for canonical status all these years.
Now the Congregation for the Doctrine of the Faith officials probably know that the hypothetical cases of the baptism of desire and being saved in invincible ignorance (LG 14, LG 16) refer to invisible cases.So they are not, and never were explicit, to be known exceptions to the dogma extra ecclesiam nulla salus( Feeneyite).
So if the SSPX or all the religious communities accept Vatican Council II ( Feeneyite-with no explicit exceptions to EENS) then they would still be affirming the pre-Council of Trent ecclesiology.This would mean they can accept Vatican Council II and also the Feeneyite interpretation of the dogma extra ecclesiam nulla salus.Vatican Council II ( Feeneyite) would be compatible with Tradition, with the strict interpretation of the dogma EENS.
So now the issue is : will Archbishop Guido Pozzo accept Vatican Council II ( Feeneyite) and the dogma extra ecclesiam nulla salus( Feeneyite) and permit the SSPX to do the same?
Vatican Council II is no more an issue. It does not conflict with the SSPX traditional position on doctrine(Syllabus of Errors, EENS Feeneyite according to the 2012 SSPX General Chapter Statements).Will the SSPX now ask Ecclesia Dei to affirm Vatican Council II ( Feeneyite)?.-Lionel Andrades