FYI, I was drunk, but many people weren't and still enjoyed the show. I would've still enjoyed the show had I not been... It's really not a bad thing that the show has a party like atmosphere. It's kind of reminiscent on her music and her personality and I really don't think she'd want to have it any other way. I actually think that's what they want to achieve. I mean you literally vibe and shake your ass and sing along throughout the whole show minus the ballads and even then you're still singing along.
So no you did not have to be drunk to enjoy the show. Me and my friends had decided we were getting turned up and going all out before the stresses of finals.