It's not that big a deal that we take over thread.
But my point was the defender times his run so that get hits at the same time as the ball would be caught without jumping.say 3 feet above the ground.
If the player elects to jump,he is catching the ball earlier than he otherwise would.
So unless you are suggesting a players falls to the ground at a rate slower than a Rugby ball,then the timing is the same,whether the catcher jumps or not.
Usually, the penalties arise because the chaser is too late to compete and too early to tackle.
With the same timing instead of tackling someone in the air,they would be taking the catcher out,without the ball.