Elsewhere in this thread you stated: "if OpenAI was 'the good guys' then any chance of the good guys getting a head start has just been blown out of the water"
So basically we have two cases here:
1. The charter is a deceptive fig leaf, OpenAI aren't the good guys. In which case blowing up OpenAI looks reasonable
2. The charter is not a fig leaf, Helen is doing the right thing by upholding it
I'd say upholding the charter is the right thing in intermediate situations as well. Basically, OpenAI are the good guys, in part, to the degree to which the board (and other stakeholders) actually uphold the charter instead of being purely profit-driven.