It is common practice for police to notify coaches that their athletes have been arrested or involved in some kind of incident before the story leaks or gets reported in the media. This is the way it works even in non-revenue sports at less high-profile programs.
It shouldn't be controversial. It is a courtesy, and if you are going to hold coaches responsible for what the athletes do, then you can't get mad when the police let them know when their kids get in trouble. If you knew the police chief, I bet he'd call you if he arrested your son. It's the same concept--except people like Butch have even more reason to want to know because he's going to have to be making public statements about the situation within hours.
If you think Butch Jones and the KPD conspired to destroy evidence, then accuse them of that straight up--don't just imply that something untoward happened because they gave him a courtesy call. (But keep in mind that, in this case, the police had already collected the most important physical evidence--i.e. evidence on the alleged victim's person.) Also, it is worth noting that investigations and evidence gathering can take months--so is it inappropriate for the media to report on the accusations at all before the investigation is completed? (After all, somebody might destroy evidence... *eye roll*)