How old is your reviewer?
I couldn't find the bio on your reviewer for this piece, Heather Boerner. Maybe she's too young to understand that Animal House is now, and probably was when made, a period piece about the early sixties, a time when 18 year olds couldn't vote but could drink and be drafted, college was often very cheap, drugs and open sex in the popular culture were new and exciting, and integration was an ideal that hadn't really begun to be accomplished yet. Undoubtedly you should discuss it with your teens, or maybe encourage them to discuss it with their grandparents, but to whine about its lack of morals? Give me a break! It's an extremely entertaining social history lesson!