>>If a particular minister/ministry's style isn't your cup of tea, SHUT UP and go somewhere else. God has all sorts of different ministers and ministry gifts, because people are different, and the people who like quiet kneeling are not going to be reached by people who like shouting and praise; and those who like music won't be reached by those who like contemplation.<<
While the main jist of your post is true - what happens when preachers are not preaching sound doctrine?
In a lot of cases, the criticism goes far beyond worship styles. A lot of it is centered around preaching that is simply non-Biblical. Man-pleasing, watered-down, "I'm ok - you're ok" heresy.
At that point, Christians have an obligation to expose false teachers and denounce their work.
The obsession with "correcting" "false doctrine" is really an admission that you don't trust God to take care of false doctrine Himself. Most of the time, of course, it isn't "false" doctrine, but a true interpretation that runs against the grain of an established denomination. Paul came across many of these, and modified his teaching to every different group.
I'm not saying a Jim Jones doesn't come along every once in a while, but have you ever heard of anyone dissuaded from going along with JJ due to someone else "exposing" him? I haven't. Usually, it only makes people dig in their heels even more.
That's the truth. I don't really care what "style" of worship you have - whether it's amped-up praise and worship, a capella singing, or traditional hymns banged out on an out-of-tune piano. What does the preacher SAY? The rest is, for me, more or less irrelevant. I get far more out of the sermon than I do out of the praise and worship portion of the service.