Here I am not sure that Harrytold her what to expect of life as a Royal. He never seemed to fit in too well with them after all. And I'm not sure he was aware just how strong a woman she is. I still believe the queen and Charles were completely enarmoured by her and probably still "give her time" right now to come to her senses (and bring Harry back).
But the tabloids and their way to try to rip her one and bring her down was too much. She was not loved by the media and they let her know about it. IIRC they gave Diana 18 months before they focussed on her spending too much money, getting rid of staff she didn't like, not preparing enough for her Royal appointments and started to hit on her. And that had an impact of her marriage with Charles. Here now we have a woman who is loved by her husband, but the tabloid influence was surely felt as much as it was then and where Diana could not go as a young bride, Meghan could and take her husband with her.
I have no idea where Harry and Meghan will end up. Maybe they return into the Royal fold and work it out, even if it will be tough. Maybe they set up their own charity foundation and work their whole time there without appearing too much in the public. I still wish them a good ending and a happy ever after.
This book and the obnoxious title is grabbing at the current situation and trying to fit in with the story. I am not sure this is what Harry and Meghan need at the moment or even want. But (other than others here) I am not sure they are so involved. IMHO the idea of a book started out when the tabloids wrote all those lies abo9ut them and Scobie offered them a book where the situation could be rectified. And then all that stuff happened and the story got its own drive and now, IMHO, they have to live with what Scobie writes. And that is not good for them.
In a way, Harry is now set to fulfill the life his mother left when she died. Only he is Royal born, so could come back. We have seen just what kind of people Diana had to befriend in the last year of her life - let's hope Meghan and Harry have a better life in front of them.