Essentially, the big issue is that Twitch went from a 70/30 sub split to 50/50 for a lot of its larger creators. Most smaller creators started at 50/50 and once they grew they were able to negotiate better contracts for the 70/30 but it was since then removed.
The biggest issue imo is that streamers don't fully comprehend the costs of Twitch and say things like "Amazon can afford it" (Quote from a major streamer on the platform). What they fail to realize is that Amazon isn't running Twitch as a charity and if it continues to not be profitable it could be shut down just like Mixer was.
I am not bootlicking Twitch either, streamers need to eat and taking 50% of a major revenue stream is a difficult pill to swallow.
It's just a bit more platform enshittification, honestly.
Every social-oriented company is realizing that the Free Money Tree has died, burned down, and is now a rotting stump in the middle of the High Interest Rates woods, and they're in utter panic because not a single one of them is actually profitable, has ever been profitable, or reasonably has a path to profitability.
Reddit, Twitch, Discord, etc. are all living on borrowed money and time and the only way they're going to survive is if they either squeeze money out of the users directly, squeeze it out of their partner/content creators, or find a new investment which isn't something that's happening anywhere.