Rosie jerking the horse in the stretch was not the problem. Obviously, the horse breaking down had nothing to do with her ride.
What made her ride disgusting was that the rail was no good all day long, there was speed in front of her, the wide path was there for the taking entering the far turn, and she chose to stay down on the rail, despite having an absolute ton of horse.
don\'t know if the breakdown was invevitable or something happened in the stretch to cause it, but I do know, if you are a jockey and sittin on enough horse such that it looks like you will win by 10, you do NOT stay on the dead rail and get trapped.
A horrible ride IMO, but not sure it had anything to do with the breakdown.