Fumble Out of End Zone Into Field of Play Resulting in Safety NFHS Rule 8-5-2

[FeetBallRef]

Originally Posted by Robert Goodman

That's not the problem, so not correcting the problem. The problem is the illegal forward pass's wiping out responsibility for the ball's being there in cases where it would've been a touchback had the fumbling player gone down with the ball. So the illegal movement of the ball gives the team making it a worse outcome than making it dead would have.

The solution is to have fouls that incur loss of down not supersede "responsibility".

I didn't understand the response. The issue as I understand it is that if Team A's QB backs up into his end zone and while attempting a pass, Team B hits his arm and causes the ball to be fumbled out of the end zone into the field of play.
Once in the field of play, if Team B muffs the ball out of bounds, it is a Safety on Team A. OR, if Team B adds new Force to the fumble back across the goal line and Team A recovers the ball, it is a Touchback. This disparity doesn't make sense to me!