It’s a choice to write to the Met and RAVEC about this, even if whoever it was also wrote to the FBI. At the time, the only reason the Met or RAVEC would even need to be cc-ed is because Meghan was marrying into the RF. I suspect that letter was also written by Thomas Jnr, who wrote to Harry at the time, because those two organizations would only be chosen by someone who doesn’t know/hasn’t been told how these things work. And those two organizations took it with the seriousness such a letter deserves: these allegations don’t pertain to a citizen or resident, neither are the victims relevant to the UK, we’ll let Harry and Meghan know we have this and we’ll put it on file.
Meanwhile, this letter has served as a very convenient reason for Meghan to keep her dad at arm’s length. The reason they gave was selling her down the river (the “tugging on heartstrings” letter), and no bride with this hanging over her would have gone down that path. She dumped him because he’s too common (sorry to be so crass), and this letter of allegations has given her cover. It’s transparent as day. If she believed these allegations, her riposte would have focused on her healing and therapy for it, efforts made to assist the authorities in their investigations, and generally been far more serious. As it is, it’s a clap back to all the questions about wanting reconciliation with Charles but not Thomas, and polishing her child-protecting halo. Harsh, perhaps, but I think true. But then in a cynical old shrew.
Also, you don’t go no contact overnight with your own dad for allegations. You would if it’s someone who has no bearing on your life: the fellow at the end of the road, the ice cream shop man, the security guard outside Asda. You’d avoid him on the strength of allegations alone because you don’t have him in our life in any meaningful way to begin with. But your own Dad?! Who you so publicly declared your love and affections for? No hunt for the truth? No communications outside of stitching him up in the heartstring-tugging letter? Nothing? Nah, don’t believe it. She thinks she’s clever but she’s just outed herself as far as I’m concerned. Now we know what was in that letter she sent him when he was lying in hospital in the Philippines: on the basis of these allegations, if you ever loved me at all, don’t come near me or my children again, if you do I’ll ruin you.
These things are so messy, so complicated, so traumatic irl. At the point where it’s allegations and nothing proven and a credible counter-allegation than Thomas Jnr has made it up or is the guilty party, this is not how a person reacts. Not without something else going on.