Edit: To put it more succinctly, Musk isn’t interested in free speech, he’s interested in his speech.
————
For what it’s worth, I agree with you, but I think that’s one of the least interesting parts of the issue.
From the context of the worker, there’s isn’t too much of a functional difference. Musk is acting as the arbiter of others’ speech. So he’s allowing anybody to say anything, unless it goes against the company line.
It’s not governmental control of the little people, but it’s still hella control of the little people, by a body that can’t be held responsible to the workers (the chances of Elon being voted out are nil).
Ultimately, I think we’re both agreeing that there can and should be social consequences for speech, it’s just that Elon has an army of well paid lawyers to help him avoid those consequences. In this case, the giant power imbalance seems like pretty fundamental framing to this issue. It’s not like both parties would suffer the same consequences for making the same statements.
(In short, if you don’t trust the government to regulate your speech, why on Earth would you trust a single unelected individual to do so?)