My unreliable memory is Altman was ( once? ) in favor of extending the period for exercising options. I could be wrong of course but it is consistent with my impression that making other people rich is among his motivations. Not the only one of course. But again I could be wrong.
Unless a PTEP (Post Termination Exercise Period) beyond the ordinary three months was on offer, there probably wouldn't be a story because the kind of people OpenAI hires would tend to be adverse to working at a place with a PTEP less than three months.