I have the impression it's more of a "bait and switch" thing. People get into streaming thinking they can just play games and make money, but then they realize nobody is going to watch someone play game X, they all want to watch game Y, because game Y is popular right now among the people who have the most time to play games and watch streams (kids). So they enter the industry thinking they can just do whatever they want, and quickly realize they have to do infinite things they don't want to actually reach the level of popularity they need.