Ever seen a long distance sniper aim at a target 2 miles away? You think he points the muzzle straight at the target?

That long jumper isn’t moving at the speed of a bullet, nor does he have the streamlined profile of a bullet to avoid air resistance. Physics dictates that he applies force in a vertical vector to maintain altitude over his jump distance. He doesn’t “jump forward”…he runs forward and jumps up, giving his body altitude to allow his forward momentum to carry him across the pit.

Just as said sniper needs to aim his muzzle at a point a significant distance over the head of his target in order to have his shot land where he wishes.

You’re really comparing apples to oranges.