One of the things that I don't like about Sorcerer is the number of feats that you are locked out of taking once you pick your spellcasting tradition. It feels like almost half the feats become unavailable.
Animist's feats are actually worse.
Because while you can pick the feat - using it requires attuning to one of the apparitions. So you feel like you are locking yourself into always taking one of the apparition types permanently every time you get one of these feats that requires it. Otherwise you have a very literally dead feat.
Why not have them be usable as long as you have at least one apparition attuned, and just change the particulars based on the apparitions that the Animist is attuned to? Even basing the particulars on which apparition is currently primary.
That would make it work a lot better.