Awesome column. I'm right there with you on the every horse is a world-beater thing. The moment I hear that, I cross the trainer off my list because I know right then I will be BS'd to death.
So true that all the bad trainers ruin the profession for the honest ones. Pros who say they train all kinds are clueless about what it takes to train a real champion. Shows are so specialized these days. No one can do it all.
When I was competing regularly, there was a trainer notorious for severely disciplining his horses and using abusive training methods(kicking their bellies, wrapping jump poles with some abrasive material). He was pretty nasty to his clients too, especially the kids. But his clients and horses always won. Hunters, jumpers, equitation. Always in the top rankings. Inevitably, most people I rode with eventually made their way there. One girl's horse died of ruptured stomach ulcers. She continued to keep her other horse there though. Even when it came time to sell my horses, we made sure that they wouldn't end up with someone at that barn.