The key word here is “moment.”
The moment has been replayed incessantly and it’s easy to say what could have, should have been done with time to think about and discuss the situation.
But in the moment, it’s not that easy.
Anyone who has been on a horse that has experienced something similar knows that in the moment, you’re not entirely sure what is happening. It’s all so fast. The horse is scrambling and next thing you know, it’s galloping again. And if the horse feels totally normal to you, pulling up may not even cross your mind.
Should there be a different protocol? Maybe, but it’s hard to make a protocol for everything that might happen. Everyone with authority to stop the horse did not deem it necessary to do so in the moment and for the continuation of the course. They could have if they saw reason.
Now maybe in retrospect, everyone involved might rewatch the replay and reconsider their decision in the moment. But bottom line, there were multiple points at which this horse’s weekend could have been ended by officials or the horse’s connections and no one found reason to do so. That is more telling to me than what observers who weren’t involved think based on a single video clip.