I completely understand what you are saying Skyhuntress and agree. Judges in all disciplines are rewarding less than stellar riding and horsemanship.
However, to play the devils advocate, you could say that the problem with her is that she is willing to use methods that may be considered cruel in order to win.
As far as her reining, I'm not sure how I feel about it. I guess my only problem (I'm not a reiner and couldn't tell you if she is riding correctly for the discipline) is that she seemed to get put up against other great reiners and is a mini-celebrity in the sport without really earning her spurs so to speak. I'm not positive though and could be completely wrong about her in regards to reining. As far as I could find, she has only recently started reining...
Again, correct me if I am wrong however watching this video as well as a few others, I don't really see a pair that should be riding with other top reiners.