Basically like when Vanilla boats break? I could see that. The only obstacle I can see with that though is the fact that it doesn't just fall apart like the boats do, it explodes. So like in real life, I don't think there is really anything salvageable from the wreckage. BUT this is a game so you could still make that happen. An even bigger "but" is that if it explodes, it could destroy the dropped items (like TNT or creepers do) unless you made the items deliberately drop after the explosion. Not a bad idea though. It would be convenient to get even some stuff back so that you aren't completely back to nothing.