Shooter jumps into the airborne defender

[BktBallRef]

Why is this different than a situation where both players are running?

Two players, on with the ball and dribbling and a defender, on a collision course, although the dribbler started moving to the point of collision AFTER the defender. The dribbler gets to the spot first and the defender collides with him. I have a foul on the defender.

I see no difference in the sirborne situation. Now, if the defender jumps and is by the shooter and the shooter jumps into him, I agree. But if the defender jumps, the shooter jumps, and the shooter gets to the spot "in the air" first, I have a foul on the defender. It happens all the time and everyone here has called that foul on the defender. It's just one reason coaches teach their defense to not leave their feet.