I don’t think we know all that goes on. I wouldn’t call their manifesto respectful.I don't think BP owes Meghan and Harry any money. But they did owe them decency and respect, which they clearly didn't get. And the latter is far more important.
And I don’t think an interview complaining about things is.
I don’t think Charles owes it to Harry to fund his lifestyle. Many in the British public didn’t like the idea of the Duchy funding them.
I would hope they get a good inheritance when Charles passes.