I've done my fair share of criticizing actual indie games in the past. I only now talked about how annoying the fans are. It always struck me as odd that people are holding up really shallow games that focus more on 20 year old arcade mechanics or gimmicky ideas as the "only way to experience creativity and deep games again". It's pretty much the opposite of what I would call deep.
I think it's a pretty steep generalization to label those doing that as "indie game fans" along with everyone else. People like different things.
Super Meat Boy was and is one of my favorite 2D platformers and I was fucking glad it came out, but there's not much of a point in trying to top it, thus any 2D platformer that goes for that is all kinds of meh to me. Dustforce was different enough for example, and a lot of people loved it, but it didnt really grab me that much after playing something like 100 hours of meat boy.
that doesnt mean that I dont love or praise something like cart life, papers please etc etc.
what you're complaining about arent "indie game fans" as a generalization, you're complaining about a specific subset of people who enjoy that kind of stuff. It's like saying the indie market is trash because for a time there a lot of people tried to copy easy tower defense mechanics, yet that barely made a dent in the amount of games out there.
I mean do you call shooter fans "AAA fans"? no, they are shootbang enthusiasts, same thing with games made independently, there's as many if not more different genres. You're talking about Indie as if it was a genre when in reality it's just a way of distribution.
I get where you're coming from thinking like that though. There's a very specific thing that got associated with "indie games" as with the word hipster, but the fact that suddenly that's all popular and kind of a fad doesnt mean that it's accurate