Yes. Having a different strike zone for every batter requires readjustment by the pitcher with every plate appearance, whereas the batter has the same strike zone every time. This is not fair for the pitcher. Having the same zone every time for every batter means no readjustment. I'll talk more about this in another post when I have more time. Gotta go.
I posted this a while ago in another thread (http://twinsdaily.co...he-strike-zone/):
For the sake of example, more on the set height/size strike zone:
The strike zone of Jose Altuve (5ft 5 in) is smaller than that of Jon Rauch (6ft 11 in) - that's an 18 inch spread.If you center the zone between those two (which isn't average, but it's the probably the best case for batters), a player is up to 9 inches away from the average zone.They don't need to adjust that whole height, since you're only taking the area between the knees and armpits.. let's say that's half (in reality it's worse as it's not at the waist, it's at the armpits and knees).A tall/short player needs to adjust their swing vertically up to 4 inches to deal with a batter-independent strike zone.That seems pretty significant.That moves the strike zone from the knees down to the shins, or the armpits up to the shoulders.
Now the pitchers - assume the strike zone is as it is today.If a pitcher releases around 55 feet from home plate and has to adjust 4 inches for different players, they need to adjust the angle of the delivered pitch by about half a degree.That's a pretty tiny adjustment.They need to deal with wind which already affects it in that neighborhood (best source I could find - https://jmcdonaldmed...ffect-baseball/), and they "calibrate" that out with warmup pitches every inning.
A batter-independent strike zone would least affect an average sized batter, but would hamper anyone not of average size, far worse the less "average" the batter is.The adjustment a pitcher has to make today in a batter-dependent strike zone is half a degree, which they already do.
I can't see a world I'd ever support a batter-independent strike zone.