Go4it.
I dont think it is as simple as that. If a horse decides it wants to run then the jockey has to decide in a matter of seconds whether to let it run or not let it run. How often do we see jockeys fight with a horse that is "overracing" for 100 / 200 / 300m and how often do we see these horses run poorly. The fact is that horses who are fighting the jockey are expending far too much energy doing the fighting and have little left for the running.
I will agree that *if allowed* to ride the horse differently then it could easily have won - but it seems the horse had different ideas on Saturday and for that its difficult to blame anyone but the horse.