mls pardon our ignorance but we don't really have a clue what is going on there. I know I have never seen anything like that before.
Because I hate to be judgemental, I reviewed the video. There is obviously two horses. The first is calm. He is pretty easy to watch. Its hard to tell with the grainy video but he doesnt seem tethered, hobbled or even really held back.
The second horse, on the other hand, appears to be in a full panic. This could be artfully trained but it sure looks like panic to me. Since I am not familiar with this type of exhibition...how would I know otherwise?
Since you seem to know what is going on there, do you have any other information on this? Why do they train their horses to dance? How do they do it? Why did one horse look night and day different from the other? Is general dancing what they are going for or is the calm horse more the goal...or is the paniced horse the goal?
All I ever commented on this video was that the horse looked frightened. The last horse does look frightened.