Where'd you dream up that idea? I operate a restaurant, so I at least have first-hand experience in overseeing barista-like workers, and I don't know how you could possibly ignore such details?
I'm sure I'm not perfect at it. I'm certainly not accurately capturing the butterfly flapping its wings in Africa. But you'd never flat-out ignore the blatantly obvious like shift times.
Perhaps with a statement like "But you'd never flat-out ignore the blatantly obvious like shift times." then you understand why people don't like stack ranking because yes people do ignore blatantly obvious things.
Sometimes it is necessary to ignore the blatantly obvious. You can't meaningfully alter the ranking of a sports team because their star player was out with a broken leg. You have to accept the circumstances for what they are.
But I'm not sure that translates to something like shift times which are fundamental to the game.