Throw In

[Nevadaref]

Please note that the front face of the backboard is four feet from the endline on a standard court, so this player threw the ball nearly four feet forward (actually a greater distance when the upward angle is factored in). That most certainly qualifies as a throw-in pass.
Fwiw, I agree that a player may bounce the ball on a rear wall without penalty if it is obvious that there is no intent for this to be the throw-in pass and the ball does not carom into the playing court.