Maybe I’m being picky, but to me sexual assault implies forcible contact. This sounds more like consensual (though illegal) activity.
I’m not approving it, just questioning the terminology.
It is sexual assault when a girl can’t give consent because she is drugged up. She is incapacitated by the drugs so there is not possible for her to give consent. That is sexual assault. So these guys drug the women up and get them flying higher than a kite where they can’t say no, they just go along with it. That is sexual assault.