But you can do that _after_ the incident. When things are not on fire.

You don’t run analysis of your chess game when the clock is ticking.

Sure, if something is super critical then you should solve the problem as fast as possible. I'm not debating that. But there's probably a middle ground there somewhere for less critical issues. I suspect the process of generating and falsifying hypotheses quickly is the skill, and I don't know if you can effectively train that skill after an incident, when you've already seen the resolution.

Chess is maybe not a great analogy, because there are rarely objectively correct answers, only hard trade-offs. For that reason there's still a lot of value in reviewing a finished game.