This kind of thing has long been tolerated in certain cultures so long as it wasn't done by westerners/europeans AKA white people. They are held to a different standard and are supposed to know better and be above this sort of thing which is supposedly borderline Pagan and even considered primitive.
We were even told that it would be displeasing to Jehovah to have friends over to our homes to study Sunday's Watchtower lesson because it wasn't sanctioned by the Society. I can only imagine what would happen if we organized groups of singers and salsa dancers even if Kingdom Songs were what they sang and danced to.
Kingdom songs were supposed to be a form of prayer or communication to Jehovah and were to be done in a reverent manner.