>>The bible says that faith comes from hearing, and hearing by the word of God.
These guys are telling us that faith and hearing come by being cool enough to relate to today's youth. <<
On the surface it would appear that way, but it is not that simple. I am 50 and play bass and sing in our morning worship service. I also teach high scool bible study at my church. I can tell you that music is an important aspect of the Christian experience and always has been - As catalogued in both the Old and New Testaments.
That said, you're not enhancing the experience of a 20 year old with Christian music in the style of Lawrence Welk. Out of curiosity, when you listen to the music you like on your own time, do you listen to much organ or choir music?
If the answer is no, why would that kind of music inspire you in church? It is culture and nothing more. And to reach a people - ANY people - you must speak to them within their own cultural context.
Yes, you can go overboard but then, that is true with everything.
It's not the music. And it's not even the instrumentation. It's the intent that is flawed. And the intent is to slant everything toward secularism. It's the draw of it. The promise of full pews (whether they are saved or not). The promise of being bigger and better. The chance for old musicians like you and I to still perform. For the tech guys to do their thing. For the crowd to "experience" worship. There is nothing biblical about it most of the time.
That's my opinion.