Similar at NYC regional last week. Friday and Saturday was pop music that most of the audience (students and adults) didn't care for, and it got in the way of cheering. Dancing on the main floor was not being allowed, and no one bothered dancing in the stands.
Something changed on Sunday, I don't know what triggered it. They started playing the popular line dance songs, and allowed dancing on the floor. It changed everything! Energy and excitement went through the roof. American and international teams suddenly had much more interaction, and it was a beautiful thing. My team, including my daughter, was dancing with Brazilians and Dutch. Much fun, as well as cultural education.
I hope the traditional dance music is the norm for the remainder of this year. We'll be at
Finger Lakes Regional next week; they've always had great music, so my hopes are high.