Earlier quoted context omitted.
The NBA is at the top right of the graph (for basketball skills) so you shouldn't see any such weird anomaly there. Suspect its actually just a biological thing that your hand eye coordination worsens at the 'extreme' heights
I've also heard that since it's necessary to arc the shot a reasonable amount for the ball to go in (or else it will hit the rim and bounce away), being shorter than the hoop can actually be an advantage. If the hoop is above you, the ball already has to travel vertically to be able to get there in the first place, but if you're close to the same height, you have to throw it relatively higher to achieve a good arc. I…
I know that sounds facetious, but like, there’s a reason no one jumps on a free throw. It’s easier if you don’t. But you have to jump to get your shot over a defender.
If you are sufficiently tall, you could just… jump less, so that your release height is the same.
I actually think the bigger reason is simply that there are more important skills for tall players to work on. If your main job is rebounding , it is better to work on rebounding than shooting.
Of course, the changes to how NBA teams play over the last decade or so have changed this, which is presumably why you now see more players who are both tall _and_ good shooters.