@DimSum - I have a tb who HATES any bit with more than one joint, and prefers something closer to a mullen mouth even with a low port. For him a mullen or low port pelham is far nicer than a french link. It's certainly not the normal, but if anyone doesn't believe me, they're welcome to put in a french link and watch him rear himself over...
As for the OP here, i'm not a fan of shows where the unbalanced on-the-fore QHs are placed over the slow, balanced WP QHs. There is a difference. However to the untrained eye, it's hard to see the difference between the correct "long and low" and the incorrect on-the-fore shuffle. Since I don't have much experience WP, I know I prefer the former to the latter, however I make no claims that I could train either, or judge a class on either, so as for training methods, as long as the horse isn't in pain, who am I to say?
I do have experience in dressage, and completely understand the difference between some overflexing for suppling v. Rollokur and the difference in what the horse feels and how it impacts their movement long and short term. Regrettably, the latter often produces immediate results that drive winnings in the show ring. However, this is by no means unique to dressage - trainers and owners and riders and competitors taking short cuts to see results faster has been happing across disciplines, riding styles, and competition types for centuries. Anyone who thinks ALL of any one discipline is either good OR bad is sadly mistaken. I know quite a few very properly trained, cared for and handled TBs, and just as many poorly cared for ones...doesn't mean racing is awful - i'm actually a huge TB racing fan. But that also doesn't mean that I like or condone the trainers that milkshake their horses or drug them or fill them up with steroids to drive results.
There IS a difference.
As horsepeople - and as people in general - we need to learn to educate ourselves on the individual and the ideal, and stop making generalizations based on a few observations.