HZPiano
From the point of view of hobbying with the scripts you may be right.
But for those who just want to play using the standalone Sforzando (or other) player, your suggestion would introduce a problem: these people would never be able to play the "full" (with noise) pianos.
So all in all, I'd say @Sofia_MZ 's approach is spot on.
Cheers and happy playing,
HZ