>>48417034I've had a similar thought, but for a different reason: Amelia knew that many of her viewers were the "bully streamer" types, who were attracted to her due to how easily Ame would rage at games, and didn't want them to spill over to Uto and do the same thing to her, especially considering how much more fragile Uto appeared to be.
There could be other reasons of course, but I think it's believable considering Amelia's shown herself to be a pretty caring person, albeit socially strange.