There's some very strange things going on with the music.
Some of those song renditions were appalling. Yet the band and a singer managed to pull of the difficult Wicked Game pretty well.
The band leader and all his musicians are professionals. So what's going on? How hard can it be to match a musical arrangement to a dance and dance time, and keep it entertaining?
The Scooby Doo debacle was the wrong song, with the wrong dance, in the wrong time. Why did everyone go along with it?