Impossible to know what is going on, really. The Forbes article makes it sound like there is significant investment pressure in trying to get Altman back on board, and they likely have access to the board. It could very well be that the board themselves have no desire to bring Altman back, but these conversations ended up being the origin for the story that they did.
It's also possible that the structure of the non-profit/for-profit/operating agreement/etc. just isn't strong enough to achieve the intent and the investors have the strangehold in reality.
If I was invested in the mission statement of OpenAI I don't think I would view the reinstatement of Altman as a good thing, though. Thankfully my interest in all of this is purely entertainment.
