At some point the high rate is just called "normal". I would expect that majority of people freeze. And unless we're all trained in specific situations and see the situation perfectly and have a good reflex and ... there will be no reaction. And how would we prove that any kind of reaction is better than none?
You don't have to be trained to see the situation perfecty or even trained in a specific situation. It is possible to train you brain to still function in a panic situation and try something. You can think about whether that was the right action at a later time.
I've had people tell me "I don't even remember the last 60 seconds" after inducing a spin in a vehicle. It's a scary thought.
