Their actions was the complete opposite of open. Rather than, I don’t know, being open and talking to the CEO to share concerns and change the company, they just threw a tantrum and fired him.
Now, yes, they definitely are.
IMO OpenAI’s governance is far less trustworthy today than it was yesterday.
It's absolutely believable that at first he thought the best way to safeguard AI was to get rid of the main advocate for profit-seeking at OpenAI, then when that person "fell upward" into a position where he'd have fewer constraints, to regret that decision.