We go to church to serve God- that's why it's called "worship service". It is not entertainment. We are not the customer so-to-speak- only God is. We must serve Him in the ways He says to, not by our ways- otherwise it is in vain, not resulting in salvation. This a false church, for they are fashioning themselves after the world- which God says not to do. Many so called churches arise and make up their own rules, but only Christ's true church saves.
"They worship Me in vain- their doctrine in merely human rules."