I think I agree that this is optimal but to me its real advantage is the salary efficiency. I don't believe the argument that a 17/15 player is worse than a 17/11 (unless there is evidence, I'd think the cases in which they "chuck" tend to be more impressive data points than actual statistical trends).
What I do believe is that the 17/11 is almost guaranteed to be in a better salary configuration than the 17/15.
I have started also experimenting with some players whose ratio is a whopping 1.7 or more. They don't play as well as the 0.7, but they offer some things that the 0.7's don't. Check out the shooting percentages of this guy
(46570827) who I had on my team in his last season before retiring. I think he was something like 8 JS and 15 JR. I ran him off the bench for bouts of outside scoring, especially against lower quality opposing defenders. In many seasons, his 3FG% was higher than his FG%!!
Incidentally, I think passing is another piece of the "chucking" equation.