I think LazyL makes some good points that make you think. But I'd still be interested in hearing the gut reaction of several homosexual men to the add. My bet is that they'd still have the "that aint right" reaction. I can't imagine most homosexual men would really like a sweaty, smelly penis rudely and offensively shoved in their face, especially when it also means they've been athletically humiliated. Sweaty human genitalia shoved in one's face (no matter the gender), especially as an act of superiority is never a pleasant experience for almost any person. I'm willing to bet most gays would immediately think "that aint right" because it's not in a sexual or intimate context.
Take any two combinations of people (male or female) and while they may find the act of what is being suggested appealing and pleasurable in a romantic or at least consensual setting, they will probably find it "not right" in this add's setting.