Perhaps the problem is that so many churches deem all other rock music to be evil, and consequently these young bands haven't heard enough good music from which to build. Or maybe the bands just can't shake the guilty thoughts that their own music might be riding the line, and they may be playing their way to hell.
At any rate, this weekend I read an essay by George Bernard Shaw called "Solemnity and Triviality." The entire essay is best summed up by this quote:
My sole object in submitting to the unspeakable boredom of listening to St. Paul on Saturday afternoon was to gain an opening for an assault on the waste of our artistic resources -- slender enough, in all conscience, even with the strictest economy -- caused in England every year by the performance and publication of sham religious works called oratorios. In so far as these are not dull imitations of Handel, they are unstaged operettas on scriptural themes, written in a style in which solemnity and triviality are blended in the the right proportions for boring an atheist out of his senses or shocking a sincerely religious person into utter repudiation of any possible union between art and religion.
Perhaps it is depressing that 117 years later things are pretty much the same. I would prefer to consider it as a comfort, however. People aren't better and they aren't worse. They are just people, and that takes a lot of the mystery out of it.