Earlier quoted context omitted.
This is what everyone is afraid of. His firings are an assault on the professional credibility among a lot of people
I think this is exactly it. Elon and the possibility of his success threatens the worldview of a lot of people.
Regardless of Musks success or failure at Twitter, the concentration of wealth in fewer hands will march on (due to automation and software eating everything, eventually, software will eat software). The middle-class SDE-type have been ignoring this reality for a while now, feeling safe because we thought we could find a different well-paying job at the drop of a pin. The bimodal income in the Software world is about to become more defined, with more folk shifting to the lower-income peak.