I don't think this is true at all. I think Amazon has realized they can't make twitch profitable just from subs, and are heavily pushing ads in order to try to fundamentally change how they make money with it. I also think Amazon, the entire company, is making a big push towards ads. Amazon is still terrible with ads, but I think this is one of the overarching themes of how the company is shifting focus in the near future.
https://www.ben-evans.com/benedictevans/2021/3/14/do-amazon-...