I am fortunately not a judge, juror, or arbitrator in this case. Can I believe male fans got too handsy with cheerleaders, whether we are talking about an unwelcomed arm around them or more? Yup. Do I think this is unacceptable? Also yup. Can I imagine tailgaters offering cheerleaders alcohol at their tailgate? Most tailgates I've ever been to in my life have involved someone offering me a drink...so...yup. "Hey do you want a beer" is probably not solid grounds for a lawsuit.
Now you mash all these things together and there's enough on the table to call some of these complaints valid and others exaggerated depending on what you want to insist on believing, because I know my lawyer friends would advise her to leave absolutely nothing out, even the smallest detail.
I will admit I find it hard to believe that multiple authority figures told cheerleaders they were prohibited from staying in pairs, or insisting they separate. Having worked with college students for a good portion of my career, I can more likely imagine a scenario where 2-3 members of the squad were known for sheepishly sticking together in a corner and being told to go out and mingle.
I will say this - I think most universities make the exact wrong strategic decision in their endless quest to limit liability - denying and discounting rather than erring on the side of believing students in the first place. If any version of a cheerleader ever went to an AD or coach saying they felt uncomfortable/unsafe, BELIEVE them and create clear guidelines that promote a culture of safety. And if the administrator felt the student was in some way exaggerating the claim or had ulterior motives (i.e. to not have to do events they didn't like doing), then re-evaluate how you are selecting students for the squad before your parade them out in front of a crowd.