[Big2Cat]

He never said the defender leapt at the offensive player. All he said was that he got him in the air. Sounds like a classic case of verticality. If the defender jumped straight up in his plane, then he is entitled. You don't lose LGP because you leave your feet.

If the defender jumps up in his plane and the offensive player leaps into him, the foul should be on the offensive player. However, if the defender leaps AT the offensive player then we have a different story.

The basic factors of the principle of verticality are

Legal guarding position must be established and maintained. Movement thereafter must be legal.
From this position, the defender may rise or jump vertically and occupy the space within his vertical plane.
The hands and arms of the defender may be raised within his vertical plane while the defender is on the floor or in the air.
The defender should not be penalized for leaving the floor vertically or having his hands and arms extended within the vertical plane.
The offensive player, whether on the floor or airborne, may not "clear out" or cause contact which is a foul within the defender's vertical plane.
The player with the ball is to be given no more protection or consideration than the defender in judging which player has violated the rules.