I think that the fact that 50+ kids basically didn’t drink or drank a very small amount (less than DUI limits) speaks to some level of responsibility. There will be way more opportunities for irresponsible and potentially dangerous behavior for every one of these kids in a few months.
The event does not reflect poorly on PA in my opinion. These are good kids who meant no harm and, for the most part, behaved responsibly - no drunk driving, no drugs (aside from alcohol), no hazing, no date rapes, no bonfires, et c. I don’t even think that there was a major neighborhood disturbance and the call was more for some concern because a kid was drunk. If this was 3 months later at an off-campus house, it wouldn’t have raised an eyebrow.