You are quite right that we are fewer than before Glin's double-speak post. It seems some people are satisfied with having to run 80 quests instead of 450, and do not care about BTA, Sagas being mandatory, the devaluation of old epics and house C challenges, and the rest of our concerns.
But there are still new members joining, and apart from the initial leaving of the people who are very easily satisfied, I haven't seen anything that leads me to believe this is dying out.
We shall not be moved!
EDIT; With Mem just announcing another round of Trivia, I expect a good turn out this evening