Its a much safer environment to party than at some random off campus house where there's no rules, no inspections, no one deciding not to party and be a bouncer, and therefore anyone is potentially wandering in off the street into the party. Ironic that the university would go so hard after these student orgs that actually do a good job managing things like underage drinking or keeping drug use from getting too out of hand, while turning a blind eye to the fact that most partying isn't even happening withing student orgs but just from random people throwing big parties in their off campus houses. Just goes to show they care more about optics and how easy it is for the media to write a hit piece on greek life than actually being pragmatic about safety.