These horses are donated for the competition by their owners. There was not enough of the horse at the beginning to really see how he was moving before hand.
The cue for the spin was normal. It was not that the horse did not want to spin it was just the way he is being cued. Also depending on how much the rider had worked this horse.
As to getting off. I tend to agree. I would have gotten off also. However I get off once I am done and walk out anyway.
-I'm so busy... I don't know if I found a rope or lost my horse.
-An Armed Man is a Citizen an unarmed man is a subject.
-Where ever free speech is stifled Tyranny will reign.