Hmm... Yes and no to your thoughtful post.
You should read Rory Miller's book Meditations on Violence
some time. Sure, sure... he's very much all about a LEO following the law, the force continuum, etc., etc. On the other hand, he points out situation after situation where "canned responses" learned from stupid teachers can lead someone down a dangerous (and sometimes deadly) path. I know, I know... Someone's going to come on here and quote Hick's law, yada yada yada. (As if they really understood how it actually applies in such a situation.) Meanwhile, Rory will tell you that a principles-based approach (like defanging the snake or unbalancing your opponent) is associated (in his experience) with a much better longevity in his line of work. He also loves to set people up for making the "canned" response in scenario training, and then point out how they missed out on so many obvious (and better) choices which an untrained person would have been more likely to make. In other words... You should work backwards from the desired solution to the appropriate tools rather than look forward from your tool or tools to how you'll make it work in every situation.
I'm all for developing evidence-based medical protocols, Ian. But I'm also reminded of a story where someone was taught in a hemorrhaging situation to put a tourniquet in-between the injury and the heart. So what does this moron do? He sees someone bleeding profusely from a head wound and chooses to put said tourniquet around the poor sap's neck. Sigh...
There's a time and a place for creative solutions. Mostly however we must remember in the OODA loop not to shut off the middle "OD" unless the stupid-simple, fast response is the best response.
Believe it or not, my college chemistry professor pleaded with me NOT to go to medical school. He said I may be stifled in medicine, and it may not be the best use of my creative talents. Hmm... Fair enough.