Having read some of the excerpts with the big filter on, I'd say if this is a book supposed to be written by fans/supporters of H&M, I would be seriously worried about books written by critics and detractors, were I H&M!
It's a disaster!
In the wake of this book, if it continues like this, H&M will be left behind like flattened road-kills.
This book leaves the impression of H&M being whiny, stubborn, immature, having too high an opinion of themselves and their status (also globally), failing to understand and accept their supporting roles within the BRF and putting themselves and their own interests above the BRF.
And as has already been pointed out, unless H&M makes it very, very clear that they had absolutely nothing to do with this book, this book that is supposed to be on their side will be a PR-disaster and burn most if not all the remaining flimsy rope-bridges there still are between H&M and UK. Even if H&M reconcile themselves with the rest of the BRF (and we may hope that of course.)
I think there are a few things that can now be labelled facts:
November 2017. - William asked Harry whether he was sure about the marriage/Meghan. (A natural question to ask IMO. Not least considering Harry's position.)
For whatever reason Harry was deeply offended and saw it as an attack on Meghan, perhaps by the entire BRF.
QEII had a personal meeting with Harry making it clear that H&M could return back if they wanted to. - There is no need to describe such a meeting if it didn't take place as described. The content of that chat would have been well-known within the BRF and senior advisors (and close friends who would have heard about it second hand.)
Harry in particular but also very much Meghan clearly had an intention to "modernize/reform" the way the BRF does things. (*) And that approach met with considerable opposition and was advised against within the court and the BRF.
There are now too many references to that strife to label it anything less than very plausible.
I also think the quote Meghan was "difficult to work with" is genuine. It has been said outright, to Harry probably, by someone.
In a hierarchical structure as a royal family everyone but the monarch have supporting roles. There is no room for someone going solo. So I believe it would have been strongly advised against by every court official imaginable and probably met with considerable irritation and perhaps even anger within the rest of the BRF.
I would find it very plausible that it would have soured the relationship with W&K in particular. - William is not particularly extrovert as is and Kate has had a rough time before getting to where she is now! A human reaction would be: "Hey Harry, we counted on your support! Are you now going to compete against us or what?!?"
It is also now a fact that H&M went on with their attempts to reform the BRF from within, despite being advised against it and attempting to do that as soon as possible, pretty much from day one actually. And that both Harry and Meghan were eager to implement those changes and that both went against advise.
There are too many references to that to dismiss it as speculation. In fact I'd say that's what the whole book is about!
The book indicates very clearly to me that Meghan went into the BRF with a completely distorted view of her role. She obviously saw it as a platform for causes she saw as being the most relevant. Rather than getting a prominent supporting role to use phrases from the acting world.
Whether she was egged on by Harry or whether she went into this life with that intention is open to speculation. But IMO she did not intend merely to be the supporting wife of a supporting prince.
What baffles me even more is Harry's approach! He was born into the system, he knew his role from infancy but that obviously wasn't enough for him.
Whether that is down to jealousy, a lack of purpose in life or a genuine belief that the BRF are doing the whole thing totally wrong is of course debatable.
What is clear from this book is that H&M were both determined on reforming the BRF from within.
The book also indicates to me that H&M misread the public welcome Meghan initially got and the popularity and attention team H&M enjoyed. And that it encouraged them to go ahead with their reforms, and when met with firm opposition from within the court and the BRF, they basically ran away sulking. Hoping the public will understand. Hence this book.
- That's the impression I as a detached foreigner get from this book.
To the best of my abilities I find it difficult to defend H&M based on what has emerged so far.
(*) You know I have often advocated that the BRF members build a closer personal relationship with the Continental royal families. To learn and exchange experiences with others in a similar situation and how they handle things. - Or at least to have someone to offload frustrations with, who can genuinely understand how you feel.
Perhaps if Harry had known and asked for advise from someone completely outside "the firm" his thinking and approach would have been different?