I would have agreed with you assessment in pre-MAD world, but in MAD world, "shoot to kill" means we all, likely, die. Those that don't initially perish, do so

I would have agreed with you assessment in pre-MAD world, but in MAD world, "shoot to kill" means we all, likely, die. Those that don't initially perish, do so shortly thereafter. In other words, there are good and valid arguments to ( using your words ) shoot in the legs first.