I think the most salient point is that the parts of the church that are prospering most are those that have taken the high road and decline to model on the main-line Protestants. Converts from other traditions have helped this cause (as was pointed out in the article) but there are plenty of “cradle-Catholics” who are traditionalist too (myself included). We are not reverting to pre-Vatican II but rather transcending it. The prospering dioceses and seminaries are almost all traditionalist. One can even occasionally hear the Latinate echoes of the Tridentine Mass here and there.
I have spent the better part of the last year reading the traditionalist or neo traditionalist arguments of Davies - who is great; The Great Facade, etc... I am encouraged that the indult is gradually being accepted and hundreds of people are going the the Tridentine Mass. This along with the more conservative bent of new priests and seminarians should help reign in on the experimentation in the Novus Ordo. On the other hand, Pentacostalism is spreading like wildfire and I fear that will become the dominant trend. We shall see. An Anglican priest friend who likes to say mass in Latin said to me that it takes 100 years to fix the liturgy. This happened in England under Cromwell or Cramer (i think) and it took one hundred years to bring the liturgy back. As long as we keep the Tridentine rite alive it won't disapear. For myself, as crazy as it sounds, i think the answer is a combination of latin and english in the Tridentine rite would expand interest in it. But i am starting a blog to talk about such things http://sflatinmass.blogspot.com