Fwiw, I kinda think it's one of those things where better safe than sorry applies, but I agree with your that the user at the center of it all isn't as big of a problem as they're being made out to be.
However, they do spread some of the dog whistles and misdirections used by the far right (and, tbh, even the center right). Makes it hard from the outside to say they shouldn't be considered a bad actor. I don't personally hold it against an individual if they swallow the propaganda because everyone is vulnerable to that (and anyone that thinks they aren't is highly likely to have taken the propaganda up to the sinker).
But once it turns into dog whistles being spread, it doesn't matter if their intent is good or not, it still has to be addressed. So, better safe than sorry.
Lemmy needs some differing voices. But it's gotta be at least as strictly monitored as lemmygrad is. Hell, some of the tankie crap needs to be monitored that close or closer from other instances.