Earlier quoted context omitted.
I've seen the "coup" framing a lot I just don't see how that's justified. They're the board of directors! Hiring and firing the CEO is core to the job (as is maintaining mission alignment, in the nonprofit world).
It's very unusual to vote to fire a CEO without all members being present. Doing so made it seem like they were stabbing him in the back
It's not unusual to exclude people with conflicts from a decision. That's a typical part of a corporate conflict of interest policy, and for a charity nonprofit board (as the OpenAI board is) it's even more critical, since failute to do so risks the tax-exempt status.