Many women suffer from sexual dysfunction and can't ever achieve climax. I guess it's easier just to blame someone else sometimes.
But of course, yes. Some men really need a tutorial and can't tell a clit from a belly button, and think foreplay is getting a blow job.
So in all fairness, if some guy is that bad in the sack...is it necessary to be derogatory and humiliate the poor bastard? I don't think so.
Unless of course it's a kinky fetish thing and he is secretly getting off on being humiliated publicly.