So if Camilla came out and said Meghan was bad (as Harry seems to suggest she has done via leaks to the media) then that would be okay because its "contained in one place where [she] hold myself entirely accountable and responsible for what [she is] am saying.” I don't think so.
The Telegraph article is interesting because it looks beyond the royal tittle tattle (and much more actual serious claims raised IMO) to try and focus on well being and mental health and still Harry comes off poor in all respects.
He digs himself into more holes every time he speaks - now it seems Meghan did shout at staff but its only bad because we in the UK all have "unconscious bias" and so when she does it its bad but when others do its okay. Well a) I don't think it is okay whoever does it but b) there is a huge difference between someone you barely know and is "new to the company" (i.e. Meghan) shouting at you vs someone you've worked along side for a long time doing so very rarely wen they are in heightened states of emotion. Sorry but there just is. It isn't a race thing. If Meghan wasn't a person of colour but did the same I'm sure the reaction would have been the same - its about someone new coming in.
The problem with what Harry says is he is offering a 'truce" on his terms. By saying "But the way I see it is, I’m willing to forgive you for everything you’ve done, and I wish you’d actually sat down with me, properly, and instead of saying I’m delusional and paranoid, actually sit down and have a proper conversation about this, because what I’d really like is some accountability." you are ruling out them every doing that because by even sitting down with Harry they would be appearing to agree they are to blame and are taking accountability for all the things Harry has claimed they have done. Without accepting any blame or missteps himself he can't really ever expect his family to reconcile with him again. He is clever though is saying enough times he "just wants to talk and make things right" but actually his book has shown that any time that has happened he has shut it down or walked away - the infamous Notts Cotts visit and dog bowl gate, Philip's funeral and more. He doesn't like what they say so shuts it down but then says he is open to talking. It reminds me of a company I once worked for who use to say how open they were to staff feedback because it looked good to create this "family style" image but actually in reality never did what they said.