Tansy, if that was all it is, then I doubt anybody here would have any problems at all with it.
But it isn't just that.
First, there's the idea that the church isn't for the body of Christ, as the Bible says, but for the world.
Once you adopt that attitude, you've already abandoned the role and responsibilities of the church.
Then, there's the idea that we have to use gimmicks to get people into the church to hear what passes for the Gospel in these churches. Rock concerts, car givaways, circus acts, etc...
The lost don't reject the Gospel because it's boring. They reject the Gospel for the same reason a child screams when his mother pours peroxide on a skinned knee: it stings! If you're a sinner in danger of facing God's wrath on Judgement Day, the last thing you want to hear is that you're a sinner and you need to repent and stop sinning. They're not just bored or confused by the Gospel, they're enemies with and rebels against the God behind the Gospel.
Third, is the fact that once you draw them in, you have to change the message of the Gospel to the point that it's unrecognizable from the Gospel so that you don't offend them. Seeker sensitive churches don't present the Gospel. They present moralizing sermons about how we're supposed to be good and take care of our fellow man, like Rick Warren, or they preach a goofy, feel good, "Your Best Life Now" message. When I was learning to preach the Gospel, one of the best pieces of advice I got was that you should be able to preach the same Gospel to a group of tribesmen in Africa that you can to a group of housewives in Mobile.
Think about that for a minute. What do you really think starving people in Africa or those being tortured in Muslim countries need to hear? That their suffering is not random, but is under the sovereignty of a loving God who will save them and give them a hope beyond this life of suffering? Or how wonderful their lives will be if they'll just sow a "seed offering" and follow these three simple steps?