JohnAnthonyMarie, right, I understand your perspective, that Pope Paul VI was never Pope to begin with.
The article raises the other question, if - as most sedevacantists argue - the promulgation of Vatican II was such as to cause the loss of office in those who promulgated it, (and that for this reason Pope Paul VI ceased to be Pope,) would that not mean not only the Pope but all the bishops also lost their office?
It also makes this second point - all the bishops of the world, even during a vacancy of the Holy See, constitute the whole Church teaching. Now if all the bishops, during a vacancy, actually intend to teach infallibly and without error, can they still promulgate together what amounts to heresy?
From the Society's perspective, it seems better to say that the Council was not and could not have been intended to be infallibly promulgated, and that that explains the possibility of ambiguity and error in the Conciliar docuмents.