The only thing that surprises me is that anyone is surprised.
I don't intend that to be snarky, more jokey. But, yeah, it's pretty much common knowledge. Not the first time they've expressed unpleasant opinions on the subject, though not quite this bluntly. There was a minor kerfluffle over it not too long after the reddit exodus.
And it isn't unexpected tbh, that's a pretty bog standard tankie take, if perhaps a tad more trope filled.
To me, lemmy is kinda like a less important version of the Apollo missions. You put up with someone unpleasant because they can get the job done, until things get to the point it can be done without them. German scientists, tankie devs. Yeah, yeah, von Braun wasn't a "real" nazi; whatever.
At some point, either lemmy gets enough movement to get a less extreme team on board, it gets forked, or something else comes along.