When he refers to spatial orientation, (some folks call it visual proprioception) hes talking about having the ability to use the features of the target around your pin to keep it centered. It takes a huge mental shift but I would say that most bowhunters could benefit from the change. A LOT of folks tend to try and put their pin where they want it to go, but then peek over the top of their pin, or to the side, or to the other side, just to make sure that they are holding on whatever it is theyre trying to hit. So on a blank bale, you have nothing to reference off of to keep your pin centered on what you're trying to hit. You just know you're shooting a completely naked bale because the pin is covering youre spot. You'd be better off shooting at a 3-4" spot at this distance or nothing at all. IMHO
If you're shooting a 900 round at distance, you're using the features of the target to hit the center. Your eye has a natural tendency to be attracted to the center of circles, or to a differing contrast, and where the eye goes the body will follow. When I am shooting my mantra on setup is "Get it close, get it gone" Really tiny groups don't come from super tiny holding patterns and putting it in the same spot every time, they come from shooting the shot the exact same every time. Like I had mentioned earlier, its often easier to shoot with a large aiming reticle because it blocks the contrast of a chewed up target. Do I do that with hunting? Nope, I shoot a .019 up pin for everything and most of the time I have no idea where its at on the animal when it goes off. I know its close, but all of my focus is on where the arrow needs to go and shot execution.
Like everyone here has mentioned, I think the average guy with a busy schedule can strive for the 1"/10yd rule but frankly it doesn't take a whole lot to get there, and that's completely acceptable hunting accuracy for 95% of the hunting situations we're in.