It comes down to immersion.
I'm all for anything that adds immersion to the sim within reason.
Off-line do what you like, paddle an inflatable across the Channel etc etc
On-line a more localized "escape" could be done, as we have the black screen of death for killed pilots, perhaps a screen showing their "home scenery" could be placed on a behind lines successful landing/crash-landing/bailout for pilots, controlled by the mission builder in some option parameter for this condition such as
25km behind lines escape = ok or whatever.
Perhaps even being able to put your own escape scene in too
.