To clarify my earlier post:
What I am saying is that the worship of the early church was just as much worship even though what we know of their worship was vastly different from a typical Baptist service.
I do not like guitars in worship. But I refuse to allow my preference to be the driving factor in worship. Not only that, I believe I should not condemn others who worship with such instruments. I'm not very fond of organ music in worship either (reminds me of Phantom of the Opera). I love the piano. But worship is not about me or my preferences. It is about God.
So, while the content of the service described in the OP (the video) is to be condemned I find it problematic to condemn styles of worship because they are contrary to one's preference, expectation, or definitions of music genres.