Maybe he did put up 500 shots a day and he is still bad. Lack of confidence can be a very difficult thing to overcome.
That could be Simplyred, no one really knows for sure. That's true. It's wrong to assume, but, I someone of his athletic ability, if they were putting up 500 shots a day they would improve somewhat. But, you correct. Unless you're actually there no one knows for sure.
And if you are shooting 500 jumpers a day with bad form all you are doing is fine tuning a bad habit. The biggest improvement I see in Pointer offensively is that he is finishing simple when the play calls for it; previously most of his drives were highlight reel attempts. Hard to argue against Harrison as MVP but Dom is running a legitimate 2nd.