I think that you are mistaken. The folks who fessed up were just trying to escape the pressure. Even twenty years ago it was happening, at the DLI. I would not be surprised if none of the seven are actually gay.
More than that, your premise is mistaken;
1)that orientation does not matter. It does. Ask any attractive woman in the military how distracting it is for other military folks to be constantly hitting on her;
2)the transcripts you refer to were not relevant anyway, they can be interpreted as direct threats only by Leaky Leahy.
I disagree that people should be dismissed simply for their orientation, especially when we need ever intelligent and talented linguist we can get right now. If someone gets out of line with another soldier, discipline them, gay or straight.