Thanks for the new thread 
I know they can't have the mass pile on that used to happen for the final dance but rather than have the leaving couple awkwardly shimmying alone, trying to fill the space and time, you'd think that they could let the other couples come onto the dance floor and dance too.
If each couple had a specific area they were allowed to be in, and came onto the dance floor one by one, then theycould fill the floor and make it look a hell of a lot less awkward