If you want to give Meyer the benefit of the doubt so be it, but there have been a plethora of high profile cases chronicling the difficulty of proving these cases in court. Perhaps most notably, and certainly within Meyer's own area of interest (football), the Warren Moon case, which was splashed all over the media for months. As an aside, John Healy, the Fort Bend Co. DA who prosecuted Moon unsuccessfully, is a UCONN alum.
I find it hard to swallow that Meyer isn't aware of the difference between factual allegations and proving these cases beyond a reasonable doubt in court, especially with uncooperative family member witnesses involved. It took many years for PA prosecutors to decide they could get a conviction in the Jerry Sandusky case. That doesn't mean he didn't commit the acts as a factual matter many years before he got convicted.