I see much worse then that at my local speed shows. People that think they are "big wigs" run their horses into a barrel and then haul on the horses mouth, backing it 30 feet and jerking on the mouth VERY HARD back and forth on each side of the bit. These are no light bits either, they are harsher gag bits with rawhide nosebands. Some horses also have a "war bonnet" or cable tiedown which is in my opinion, the harshest tiedown ever made. It's steel cabel covered in a plastic overlay for crimeny's sake and when they jerk on the horses mouth, their head snaps up.
There's nothing you can do but be disgusted by those types of people. This particular rider isn't the softest handed by any means, but given the information that nrhareiner gave about his inexperience in reining horses, I can see where it stems from. Would I treat my horses like that? No, I don't need to. They've been given a proper foundation that allows me not to do that. I have very soft hands as well. But, I do not consider that "abuse" by any means. Like I said, I've seen much much worse. This particular horse seems to be responding very well actually.
"The greatest pleasure of a dog is that you may make a fool of yourself with
him and not only will he not scold you, but he will make a fool of himself too."