Yes, I am for real.
Let us break this down:
"he was friends with a..." so if I'm friend with a bad person (and I don't know about why they are bad) does that make me bad too?
You make reference to 'young girls' but my point is 17 isn't young: in fact when I was that age, the 17 year old girls were much more mature than me and usually wanted to go out with lads aged 20+ (to my and my mates annoyance).
Did he know she was 'trafficked' and again, that is a very emotive word. Trafficked is usually associated with sex workers crossing the channel etc. I assume with this situation it was totally different, yet the same terminology is still applied?
Why? Maybe because some people want to have a pop at the royal family and he is the easiest target to shoot at.