My guess is it didn't go well.
It's not that easy to get comfortable with a stranger. It takes some practice. During my first time everything went fine until I tried Doggystyle. I lost my erection. I wasn't bothered about it, I just went to an other girl and I kept it missionary.
My guess is those idiots probably couldn't get hard or stay hard long enough so they thought this was not a thing for them. They jumped to conclusions way too quickly.
I say that because I've seen faces of guys coming out of the houses in Amsterdam's red light district, along with the face of the hooker they went with. It's like I could guess exactly what happened from those faces.