Sentebale: Harry has hung the trustees out to dry. They should have known better and I have no sympathy. But I'm pretty sure Harry will see them as collateral damage, not his fault or problem, that their job was to support and protect him and nothing that happens to them after the CC investigation is anything to do with him. Tbf, I can't see the CC coming out with anything too serious as regards the ex-trustees. But still. Arrogant and stupid as he is, I think Harry's too knee-jerk to have anything close to a strategic enough vision to set fire to the charity only to come to its rescue. I also don't think he cares enough about the organization: he hasn't been to Lesotho in 6 years, losing it would be like losing a finger (wtf?), it's an unproductive relic from his previous life (Invictus at least serves a purpose today), and pretty sure his day to day life as influenced by his wife and children leaves little room for the beneficiaries of Sentebale (other than polo matches of course).
Oprah: given her personal history, and the amount of time and money she's put into her South African Leadership Academy for Girls, I expect she's very much on the side of Sophie Chandauka. And, I think she saw Harry for the braying, entitled, spoilt white British prince he is before she met him, and MM for the grifter she is the second she set eyes on her. Nothing gets past her. She used them, not the other way round. She has her own agenda (not money, at this point, and not even power: I think she's vested in her personal history and past and going to her grave at peace with herself and her wrongdoers and having set some things right) and neither of H&M figure in it at all. It would be a nail in Harry and Meghan's coffin if Oprah were to sympathetically interview SC, and Oprah knows this. If she does it (I have seen rumours she's in talks), that would be Oprah healing herself. (BTW I've never been an Oprah fan, but my Mum loved her in the 80s and 90s!).