Comment by happytoexplain

True, but, 1. Musk is vocally anti-liberal (or really, vocally anti-things-associated-with-liberals, and vocally anti-other-things too), and 2. He expresses it in an antagonistic/mocking way.

Those two things combined are enough that it is reasonable to criticize him when a bias appears to occur. Of course, critics must be careful not to be too unreasonable. But such behavior as his is antithetical to big trust-based systems (e.g. moderation of large, entrenched social platforms), so it's important to criticize people in his position for commiting his behaviors, and to be critical/suspicious of moderation under his purview when there's a question of bias (this is the same criticism the right made, in not so many words, of pre-Musk Twitter, and which I don't think was totally unreasonable then either, though I do think the circumstances are far from perfect mirrors of each other).