My personal thoughts are this. God gave us the gift of joy and dance. He also gave us the gift of praise in him. I think this is over the top, but still it is showing excitement for a marriage and starting it off with fun. Why do weddings need to be like funerals. I think God would love this. Has anyone ever watched Jesse Duplantis preach, watch out now. He is a trip.
I think this shows respect for god and the joy this couple shares for life. My gosh, it may not be for everyone but I would go to a church like that. Ever been to a church with rocking music before hand, in comparison to the, no offense, tired old hymns. Makes a big difference in the service!!