See, I remember things a bit differently.  I remember much rumbling and many who were "older Catholics" in the 60's who did not adapt so well.  I also remember a good number of people who were not so much "older" who resented the way that the changes were implemented.  Many of these who were RCs showed up in Ukrainian Catholic parishes, where Liturgy was celebrated in Church Slavonic and then in Ukrainian, both languages that they could not understand.   Those whom I met personally told me that this was a big reason that they came -- worshiping in everyday language was just not sufficiently reverent.