That's her job to decide what's good for humanity from my reading of the charter
How does destroying company achieve the mission of having _that very company_ create artificial intelligence that "benefits all of humanity?"
Who made the decision to fire Altman? The board.
Who is the board answerable to? The law.
Which is why she needs a legitimate reason.
Does she? In that case, perhaps she should tell someone what it is.
Nevertheless, when a board decision explodes into international headline news as this one did, my gut feeling is it might possibly be a good idea to make a press release with more details.
But that's easy for me to say — I don't have the real insider information, and I wasn't in their shoes.