And so you strike a deal with Microsoft. That tracks.
The velocity of release and entwining with MSFT (by the profit side) might then be reasonably seen as a great concern for the board.
The default, in the absence of an OpenAI, is that it gets developed secretly by these organizations, and they get to decide who can use it (hint: it's not you, typical HN reader).
OpenAI were the only ones at least trying to walk this tightrope, and I think they were doing a pretty good job. So what were the real motivations of these three wealthy/elite board members who are taking it upon themselves to decide this issue for the rest of humanity? It's looking less and less likely that safety was the reason.