Agreed. Some reining training is hard to stomach. But just like everything else - not all trainers. I’ve seen some good ones too.
Reining has a lot of rougher ones, probably because it’s been a very macho male dominated sport. Reined cowhorse too. I’ve seen some particularly rough methods used with those youngsters.
I have a horse who flunked out of reining training in my barn (I take on a lot of flunkies and broken horses). He was used up by 6, front legs were just trashed. Pretty boy though. Really nice mane. Reiners do have a corner on that I think - the mane I mean - I keep trying to learn those skills and I just don’t have it 100%. And he had a perfect handle on him. Really nice lateral work. Very shut down mentally, but when he threw his cookies out of the cot they were thrown. I always attributed that to his breeding, but the training might have contributed. Who knows.
Either way - there are good and bad trainers in EVERY discipline. People who chase money, who don’t put the good of the horse first. There are good and bad things to learn from every discipline.