A theory:
A huge punishment hit the Church in the 1960s, because of the disobedience of not consecrating Russia and not revealing the Third Secret. But wasn't that enough? After millions of Catholics had lapsed, would God have abandoned those that hung on, even in the Novus Ordo, leaving them with invalid sacraments and being forced to commit material idolatry every time they went to Mass? And wouldn't it be contrary to the Indefectibility of the Church for it to promulgate sacraments that are intrinsically invalid?
If individual priests and bishops change and mess up the sacraments, that's another matter and part of the punishment. (When Archbishop Lefebvre conditionally ordained priests ordained in the new rite, he started by deciding according to what he knew of the bishops personally, and he knew many of them. Is was only when those had died and he didn’t know the younger bishops, that he always gave conditional ordination. He says this somewhere in his early writings.)
Personally, I think the Eucharistic Miracles at the New Mass could well be genuine and perhaps also directed at Traditionalists. Is Our Lord saying, "I have to be at this Mass, however terrible and however sacrilegious. I don’t want you to come to it, but remember I am here, and you are the ones who should be doing penance and making reparation for this sacrilege. Don’t just walk away and say, "It’s not valid, nothing’s happening, forget it."
Could this be what Traditionalists in their turn are being punished for, by the collapse of the SSPX? Have too many tried to solve the Mystery of Iniquity with a textbook, relying on human reason and not having the humility to say "We just don’t know."
We need to know some things – how to keep the Faith, how to pray and receive the sacraments, how to justify and explain the Traditionalist position and now how to explain why the Resistance is necessary, but we don’t really need more than that.