I would guess that this is part of their plan to establish different income streams for the future - no doubt there will be a follow-up book (or more than one, e.g. Harry's on mental health in the forcs); then there will be her lifestyle blog (no doubt hoping to copy Gwyneth Paltrow's high earning Goop); then there's the merchandise website. The book is to establish themselves as both victims and pioneers -thus leading (they hope) to interviews, chat shows, part for Meghan in films, blah blah blah. I suppose if we don't want to support them financially, we have to accept them trying to make a living elsewhere. But I hope they don't trash the Royal Family - that would be a real burning bridges.