Considering that most of them stayed Catholic through the whole deal? You bet.
I often wonder what would have happened if Luther.
1. Hadn't been used by the Electors
2. Had gotten his desired hearing.
The whole point behind the 95 thesis was a protest over some abuses going on in the area. Most Catholics now agree, that there were abuses. However, the Electors saw it as a chance to finally get the Pope out of the Empire.
I was raised Catholic, but I have to look at the Protestant Reformation as inevitable, sooner or later, even if there had been no serious abuses in the Catholic Church. I don't think it's reasonable to expect to fit the whole world into the same philosophy, the same theology, the same artistic sensibilities, the same music, the same liturgy, the same authority structure, etc. I believe that some variations in religious expression are inevitable, but that those in power will generally resist allowing those variations; hence there are schisms, heresies, cults, and so forth, throughout the history of religion.