I couldn't even watch the entire video I was so disgusted with the first handler & then Linda herself. And it has nothing to do with her being a Parelli or her husband etc. It was just overall bad horse handling. I completely understand what she was trying to do as my farrier has been introducing me to some different NH methods. We do something similar with my little filly for backing up, more of a "push" with the rope than wiggling it, and it works wonderfully. She's picked up on it to the point where I can keep "asking" until she goes where I want her to because we started slow with a hoof at a time. I also indepently work her front & back before combining them.
This was just disgusting though. And that's poor horse's jaw :/