TWHBEA isn't the only game in town. I went to a NWHA show just a couple of weeks ago (as a spectator). Showing really isn't my "thing," but at least NWHA doesn't even offer Big Lick classes and it was a relaxing way to spend a few hours on a Saturday.
I can't say I agreed with the judge on every placement. . .the horses that seemed to move naturally and comfortably were not placing as well as the ones that looked "stiff."
Having said all that. . .there is nothing "wrong" or "bad" about showing Tennessee Walkers. The breed NEEDS flat-shod, naturally talented horses out there in the spotlight so that people can see what the breed is MEANT to do, and that true gait doesn't come from pads, chains, chemicals, or pain.
"Parelli horsemanship is just like painting by the numbers. You need absolutely no skill. You just put this color here and this color there, and when you're done, you have ... a mess no one wants." mp