"... you can train yourself to make the best of it when it happens ..."
The standard (and best) answer. From experience there is another factor to take into account, randomness. Each situation is unique making how you adapt important. It's never quite like the drills. Training allows you to adjust quickly. With training the skills are there ready to be applied and adapted to the situation at hand.
I'm intrigued because my understanding of drills is that it turns the required response (e.g. in skydiving trying to get stable when things get out of control) in something instinctive that will take far less time than normal to execute. When you couple this with the slowed-down time, you do improve your reaction time, so that you can use your available time window in the best way possible.
The standard (and best) answer. From experience there is another factor to take into account, randomness. Each situation is unique making how you adapt important. It's never quite like the drills. Training allows you to adjust quickly. With training the skills are there ready to be applied and adapted to the situation at hand.