Well that’s just because it didn’t affect a main character. Plus, I’d wager most people who vehemently hated it cannot be moved from their position that Twilight’s ascension could be anything but negative. Personally, the worst thing I think they could do is go back to the status quo.
I know there’s a lot of reactionary people in this fandom who would scream with joy if Twilight somehow went back to being a normal pony, but I’d be very worried and honestly disappointed. Like it was something that they couldn’t deal with, and were more worried about negative reactions to it than their own ideas for it.
I sincerely hope that Miller is doing a good job making S4. But really the best thing he and the rest of the team could do is ignore unreasonable demands and not be scared into doing things that aren’t their plans by fans who rage endlessly at them. Some people just can’t be satisfied.