Well, young dancers are just that - young. They went to a party and tied one on. As Ian noted on the show, enjoying yourself too much has its risks at what is in effect an office party, but I saw no degenerate goings-on - Ronnie never even took his shirt off - and these young people work pretty hard at their day job.
I was confused by your comment, because in the online version of the episode, this is exactly what happens - Ronnie takes his shirt off, and there's the lovely licking of tequilla off of Ronnie's belly - and at least one other dancer. There's definitely a lot of alcohol and drunkeness in the party scene, and I kept thinking, "Their parents must be so proud". ;) Not that I haven't been there myself, but I never would have allowed my private behavior to be recorded by TV cameras. There's a level of narcissim at work in this culture that just didn't exist when I was a 20-something. Perhaps their parents really are proud - because the kids are getting exposure!
Somebody was licking tequila off Ronnie and I missed it? Damn.
Sklute seemed to like Sisk for the role of Cinderella better than Somes did, so Sisk's instincts were right (of course, when the stager keeps getting your name wrong and calling you "Becky Anne" that's never a good sign).
I note that amid all the boy-girl stuff and the ginning up of "drama," some serious personal questions do arise. Allison DeBona's dilemma - whether to stick around for a few more years of dancing or give it up, probably forever, to follow a guy who's pushing her to join him in a place where there's no company -- is a genuine one. Ronnie's recovery is another.