My wild ass guess is that, even in Sweden, a 16 year old very publicly having sexual relations with many adults in obvious furtherance of the goals of the adults would be decried by a lot of people as sex trafficking.

I'm well aware there are very real problems with acting like 18 is some hard and fast cut-off between genuinely consenting sex and some kind of abuse based on inability to make such a decision. But this is not the equivalent of a 16 year old girl having a 20 year old boyfriend. There isn't just one single adult involved in this scenario with this 16 year old.