well, for one, somebody has to explain why his father, mother and neighbor didn't do anything substantive that evening or years later. And, that leads to why Schultz and Curley didn't do much either. You've got five erstwhile pillars of the community that did next to nothing.
MM having a wishy washy story is about the only thing that satisfies that scenario. (Also, BTW, one has to consider that MM didn't see anything directly, but saw what he saw through a mirror).
I'm not sure what the mirror has to do with anything. Even if he did, a locker room mirror isn't like a fun house, it's not going to distort anything.
Not sure what you mean by a "wishy washy" story? If you mean one where he doesn't go into explicit detail, then certainly his story was "wishy washy". As far as doing anything substantive, perhaps one reason I side with McQueary is a realization that his actual actions are probably exactly what I, and I'm willing to bet, 90% of the other people would do under similar circumstances (if they even do anything). I worked for a large multi-national corporation. Back then, if I had walked into a corporate locker room and saw a respected executive in the company engaged in questionable behavior with a youth, the last thing on my mind would have been to call the cops. I'd have probably made a noise just like McQueary did, then I'd maybe call my boss looking for advice or maybe corporate security, which is basically what Dranov and McQueary senior recommended doing. That's just the way things were handled back then.
The one thing that I hope people take away from this mess is that the first call probably should be to the authorities. Unfortunately, given the way that McQueary has been treated, I fear the exact opposite lesson is the one being taught, i.e. close your eyes, forget you saw anything and get the hell out of there because if you don't your life is ruined.