I haven't looked up the numbers like KqWIN, but anectdotedly this happens every year. People get on here saying that NBA spacing is going to be so good for a player and then it never happens.
I'm pretty sure that improved NBA spacing is negated by improved NBA defense.
NBA median rim Frequency: 22.8%
NBA median rim FG%: 70.0%
NBA median FTr: 24.3%
Power 6 median rim Frequency: 35.8%
Power 6 median rim FG%: 60.8%
Power 6 median FTr: 33.7%
The NBA does have better spacing. What people are missing is that the clogged toilet offense is clogged for a reason. Whether a player shots 20%, 30%, or 50% of his shots at the rim, he is getting that proportion of shots in an offense that emphasizes attacking the basket even if it results in bad shots at the rim. The NBA runs a more spaced offense where more shots are 3's, less shots are at the rim. The efficiency increases, but the rate does not.
If anyone still thinks that Rim Rate and FT Rate, the simple thing to do is just show where it happens in the NBA. Give real examples of when the improved spacing in the NBA resulted in more shots at the rim. Every single year we mention how this guy or that guy is going to benefit. I am not even saying that the players do not benefit from the NBA style, but the NBA style does not result in more shots at the rim or FT's.