Postmodernism is a dead-end street because it evacuates all content of truth and moral objectivity. I believe God utilized a virgin birth for Christ to become man. I am not literalistic the Bible is not a science textbook. Yet I am sure it is literally true in terms of belief. The analogy of actors and audience is useful only to remind us that we are worshiping God, not pleasing ourselves.
Dance is good when done judiciously, for example movement using sign language for the deaf.
Performance is not the issue, because we are offering our best gifts to God. We must always keep him at the center of our worship. This is a terrible problem in so many modern buildings where carpeting and padding soak up the sound. We need to urge people to think clearly about acoustics in our worship spaces. We should only introduce new music with clear education before a service, or maybe spread it out over weeks with a youth choir singing the song a week before.