I think it is more like this; if the tightrope instructor says, do these five steps and the student is then able to find the right balance then for the student the instructions led them to the balance that they need. However if the student is unfamiliar with some of the terms in the instructions then maybe they need to work on understanding those terms to be able to follow the instructions.Could it be like walking a tightrope?? I mean, the instructions can certainly be objective, but the walker must first develop excellent balance in order to perform well. And that part is subjective.
I always come back to the Fosbury Flop. This was a new technique for doing the high jump and was roundly ridiculed. However after Dick Fosbury broke all of the records and won all the medals the rest of the high-jumpers started to use his method and achieve similar results.
Long before we had the technological ability to understand the biomechanics in detail someone created a technique that improved the performance of the whole field.
Fosbury might have given a completely wrong answer as to the mechanics underlying the technique but the practical effect was that he was outperforming his competitors. Did it matter that he was not entirely clear why that technique worked better? I don't think so.
He discovered a way to objectively and consistently perform a measured task that could be and was duplicated by others. In the interim the technique has been studied and improved on.
My point will always be today from a user's perspective, which is my perspective, if you tell me to do steps one, two and three and by completing these steps I get to the shot line then I don't need to know why it works.
If those instructions triggered something in my brain that allows it to consistently get me to the shot line without any extra conscious consideration then great. I liken it to the technique of looking two car lengths ahead. Doing that consistently provides the information that I need to pilot the car effectively. Had I not learned it then I would likely still be able to drive but perhaps not as consistently well. So if the task is not to get into an accident then that simple visual technique works pretty well to help the user stay out of accidents.
Here is something I have to date not seen a single cte critic be willing to participate in. A shot making study where participants are taught various aiming systems and their body actions and eye patterns are recorded from several angles. The table is fully gridded out and the same is done around the table.
This would provide us with a way to track the body movements in relation to the table and ball positions. I am pretty confident that such a series of testing would lead to a far greater understanding of aiming overall as relates to pool in particular.
Far cheaper to be a critic and just mock and knock though. That's free entertainment as speculation presented as fact costs the speaker nothing.