Is Case 4.15.4 Situation C wrong?

[bard]

Absolutely. This is exactly why the play is legal and why it's not considered part of a dribble for the ball to be thrown off a player's own backboard.

Okay, for the sake of discussion, should we consider that player/team control ended when A1 intentionally threw the ball off of his own backboard so that he could recover it?

I'm not arguing that the play is legal. I think the case book makes this absolutely clear. Logically I just think this is wrong. A1 is not shooting and has not lost control of the basketball. There is also nothing in the definitions--that I've found--that says throwing the ball against the backboard is a try.