This is all true, and the whole situation will probably end mostly poorly for most Twitter stakeholders. I'm not one to defend Musk's management practices, but

This is all true, and the whole situation will probably end mostly poorly for most Twitter stakeholders. I'm not one to defend Musk's management practices, but I think the main idea motivating this purge (which may or may not be a correct idea) is that Twitter, specifically, does not need "rockstar" engineers anymore at all. Sure, he'll take them if they kiss the ring and work for peanuts, but he wants people who follow orders and don't talk back. He's not unique here: all management everywhere always wants this wants this but, in some endeavors you have to tolerate people who aren't this way, either because you don't know the right orders to give, or just because they're the only talent that can get done what you need to get done. Twitter's main corporate priority at this point is keeping the lights on as cheaply as possible, since they have a huge nut of debt they they can't afford to service, and on top of it all revenue is down. Again, I'm not saying this situation is desirable for Twitter employees, users, management, advertisers, or ownership (or even Musk himself), but this is the situation.