Yeah, but there is a difference between having a token homosexual (still part of mainstreaming) and having an openly gay character, 4 guys doing all sorts of gay stuff, and 2 others doing some of the gay stuff. There is only one guy there who is clearly not gay, bisexual or has gay tendencies.
He is (in the openly gay guys words) an 'ultra-conservative', in his own words a 'Rush Republican' and is most likely the first one kicked out of the game.
I think the producers wanting sex on camera is one of the motivations, but apparently the women weren't giving up the goods enough so they are going for 4 gay guys in the hot tub.
The "token" homosexuals (male and female) on The Real World are very prominently featured. One season the gay male had AIDS and was pitted against a Cuban Republican female. Another time it was a gay male pitted against a devout mormon female.