Maybe it is somewhat applicable. If we know from the pro level that a large difference between zone and out of zone swings is important we could tell a patient hitter to look for certain pitches within the zone to get better pitches to hit. The same applies to very good contact hitters who tend to put too many balls in play.
But if we have a guy with pitch recognition issues you first try to improve pitch recognition but if a limit there is reached don't tell him to sit too much on certain pitches but have more a see the ball hit the ball approach and let lose if he thinks it will be close to the zone. That is because even if he sits on lets say up and in pitches he will chase pitches way up out of the zone and then take hittable pitches in the lower part of the zone.
So to keep the zone swing minus outside swing differential high tell him to look for a pitch over the plate and drive it instead of being too picky.
You prefer him swinging at the pitch an inch off the plate to avoid him taking the pitch down the pipe and then swing at the pitch a foot outside.
But if you have the guy with a good eye you can tell him to take the pitch on the black to wait for a better one because you can be sure that he won't miss his pitch or panick and chase the pitch way outside after falling behind when taking early.
A good example of this was javier baez first pro year. Javier is a free swinger and the cubs are known for preaching working the count and making the pitcher work. That is not a bad approach but for javy it did clearly mess him up because he chased a lot outside but at the same time took a lot of pitches because he was taught to work the count. That works for guys like rizzo or bryant but not So much for him.every hitter is different.