The point I'm making is that training yourself to think of counterfactuals, even for weird stuff, trains your brain to make it less likely that you will miss things that can cause horrific real world consequences. It also trains your brain to recognize that you must consult with experts in whatever field you're looking at. As well, it makes you comfortable with the idea that nothing is guaranteed and nothing is set in stone. As circumstances in the real world change, the counterfactuals will change as well. Basically, it boils down to training people to have a flexible mindset with regards to stated goals.

A counterfactual exercise is exceedingly useful because that's how a lot of these discussions go:

Assertion: "We've added a ramp for wheelchair users! It's accessible to ALL disabled users."

Counterfactual: "There are no rails, what about people who need rails to go up a ramp?"