My take, and it may be completely off, is that they returned to the UK hoping to establish some form of relationship with the Royal Family that included security provisions. The reports about pulling the children from school - security concern. When there appeared to be no movement on that front, Harry gave interviews expressing a desire for reconciliation, but that didn't seem to change anything. Now this story involving her father has surfaced. Could be another “we need protection” move. Seems she didn’t count on people looking into the story - questioning the timing, the story itself, and the people involved. At the end of the day, these are serious allegations. It's best to let law enforcement investigate and determine the facts. The truth always comes out.