Sure, and neither is Twitter banning people. The argument is that Musk will silence or get retribution against people through Twitter ownership, just as he does in other contexts.
That's a more refined argument then I've heard. Yeah, I think it is possible that he might fire Twitter employees who are vocal critics of the company position. I think a lot of people still see this Petty personal retaliation as a step up from silencing people based on arbitrary politics. I am much more skeptical that he will be banning politicians from the platform or disagreeable positions
He should fire those people. In fact from day one for the first few month the objective should be cleaning house, hard. Reduce head count by 50%. In fact dig through who came up with idea to ban Babylon Bee and just fire everyone who saw that decision and was not opposed.
Politically motivated or not, he stands to dramatically increase profit margins, at least in the short term, by getting rid of people.