I'm not sure where this chain of logic leads, but to me the fact that the woman did not even remember the encounter, and had no apparent physical injuries, rather mitigates the guilt of the players. All involved were blitzed out of their minds. Also, from what I read in the paper, one guy might have had intercourse with her, and the others (there are other defendants awaiting trial) just cheered on the action or let it happen. Not exactly a "gang rape" by my definition.
If the perpetrators were on the college chess team, as opposed to the football team, I think the jury would have been more balanced in their assessment.