The "Smoke of Satan" that Montini was referring to was in the form of criticism of Vatican2 and the NOM. He was not saying that the NOM was the result of Satan. The Smoke was coming from the naysayers, like Cardinal Ottaviani.
That's debatable, what he meant. But nevertheless I'll concede your point for the sake of argument.
How about a better example?
VATICAN II
Have you ever read those docuмents? One foot firmly in the camp of Tradition and love of the Catholic Faith, and the other foot firmly in the camp of the World and complete contradiction with said Faith. And statements from EACH OF THESE SIDES often followed upon one another immediately!
Vatican II is the classic chimera, blending Catholicism with Conciliarism. But once again, lets ask ourselves: Which of these sides grew more powerful in successive years and generations? The modernism. Vatican II did its job -- it made a break with Tradition, and it set the gears of heresy in motion. Human nature, Original Sin, darkness of the Intellect, and the influence of the World did the rest.