Their recommendation algorithm doesn’t care what you watch, it cares what other people who watch the same streamers as you watch. So if I watch a lot of shroud, I notice more titty streamers popping up in my recommendations because shroud viewers are more likely to watch titty streams.
More than anything it’s annoying. I come to twitch for gaming content. I really don’t appreciate my recommended tab needing to be censored. It’s not taking away viewers, but it is making the experience on the platform worse for many.