I wonder if this is more a result of seeing people like Doki and Mint excel after leaving their corpo. Holomems that don't care for the idol song and dance (or the stringent practices and scheduling that comes with it) have little reason to stay if they're confident they can do just as well on their own without all the restrictions and bureaucracy.
It doesn't necessarily mean that things are bad behind the scenes, but could simply be a manifestation of the trend that many have been predicting--vtubers moving away from corpos and indies becoming more prominent.
However, Chloe seems like an outlier in that case, and could indeed be evidence that something is rotten in the blue dorito garden.
Honestly, I'm not really sure what to think. Aside from being a fan of Chloe's music, Fauna is the only one to really impact me personally, so I'm still processing.