you think the idea of reloading a crashed program is not a good one? for example, what if it's a web browser?
crash reload crash reload crash reload agghh make it stopbtw. Windows uses this mechanism for running Explorer, as a stop gap to fixing it they just made it auto-respawn.
either way I think it's a unrequired feature for a shell, a user program specifically for monitoring process state would be preferred, should it be required.