For the past 50 years or so, the LCMS has given into what will become a never ending cycle of placation. Every generation, we tinker with things to appeal to the youth, we try to cater the Church to them... and you know what? Youth trends change as new generations come... so our placations have to change.
But here's the thing. Those kids from the 60s, they still want their Folk Masses. And the ones from later on, they still want their singer-songwriter services, or their soft-rock services - or their grunge and extreme services. So we have all this age based worship variation based on what was cool when you were a kid.
We do not need to cater the Church to any one group of people. Rather, we need to bring people of all sorts - from whatever background, and incorporate them into the culture of the Church where they will receive Christ and His gifts.
Incorporation, not placation. Placation will always only divide and fragment the Church.