There is plenty of room for conjecture and supposition here, but it would be extremely unfair to deal with this matter as such, given that the royal couple have of late been visited by such unprofessional reporting by media, even in England. Simply accepting their point of view seems the right course of action, thus, concerning their abdication from senior positions of the British royal family, Their Royal Highnesses, The Duke and Duchess of Sussex, put it as follows:
For further reading, visit their website, sussexroyal.com, which "was created as a source of factual information regarding the workstreams of The Duke and Duchess of Sussex."