I'm not sure I agree with that. To quote Otto:
I honestly think I'd be equally uncomfortable with this whether the others are straight or gay.
Besides, under DADT, these people might already be gay, right? The only thing that would change is that you'd know about it.
The point I'm trying to make is that since we can't put males and females together then we shouldn't be able to put gay and straight together either. We don't put men and women together because they have sex, degrade command climate, etc. Not to mention that putting men with women would also lead to an pretty substantial increase in sexual harassment and rape cases. How is putting a gay with other gays any different?