Without reading the story link....

1. Lack of Practice - Just shoot more "practicing". "Practice makes perfect" (or at least better - pretty much a guaranteed result)
2. Fundamental shooting style that needs corrected. Sorta a "Well Duh"
3. Player lack of commitment to Improve (by more "practice", or listening to those who have expertise in how to "improve" - e.g. Shooting coaching/instructors..)

Of course, there's the fatigue factor. A 6'1" player who was just hammered by a 6'10", 275-pounder is going need some time to shake that off. And taller players have a worse angle to shoot from and thus a smaller target to aim at. Tacko Fall is a lousy FT shooter.

To me, FT shooting is like putting. It's mostly between your ears.

Any time I ever went to the FT line I always thought about the motions we went through in practice and visualized that. Easy, peasy, lemon squeezy.

I think shooting free throws as an exceptionally tall person is maybe a little different but not necessarily harder. I think taller guys need a little extra arc based on the starting spot of the shot. A big reason big guys tend to shoot worse is lack of practice because shooting isn't emphasized as much for big guys. Also, the bigger a player is, the less skill that is necessary to be an effective player. A really high percentage of 7-foot-tall people are basketball players, so a fair share of them aren't going to be naturally good at shooting, whereas people at 6 foot tall almost have to be good shooters to separate themselves from everyone else.

Just an aside, I don't think practicing shooting 3-pointers makes you an idiot. Yes, you need to shoot free throws, but you can't exist in higher-level basketball without an outside shot. If we're talking really young players, yes, I agree.

Moving on...

I never understood why people were bored by practicing putting. I could spend hours and hours and hours on a practice green. I made up countless little games in my head on the practice green.

Hitting short irons or chipping for very long, on the other hand, bored me death.

Man, young players have it great now. Having an IPhone and headphones always at your side means music or podcasts to listen to while practicing your shot or your swing. There's really no excuse to not put the work in now.(I make the same argument about the weight room/workouts and even doing housework. It's so much easier to put that work in when you have reliable, always available entertainment to accompany it.) Hooking up your Walkman and hoping it didn't skip or fall or impede just wasn't much an option before.

I think of all those maladjusted tennis prodigies who would've been a little bit more normal if they could've at least listened to a podcast while slamming balls against a wall for 10,000 hours.