I've held off saying this yet again, but here goes. This would be bad for the game. The game needs players in the air or in fighting vehicles for other players to interact with for the game to be fun. Encouraging players to sit idle on a hillside for 30 minutes, completely out of the game, while another player slowly flies a Storch, mostly out of the game, to pick him up would hurt the game overall.
Further, sitting on a hill for 30 minutes hoping to be rescued seems about as fun as watching paint dry.
That's pretty much my opinion on it as well, but based on that logic, everything we do should be advancing the game. We all have our things that 'take us out of the game', like going afk to let the dog out, spending a bunch of time climbing to ridiculous alt, heading off in a different direction from known enemies on a hunch that there's an NOE headed that way. Any of a thousand things that aren't the 'best' use of our time. According to some the best use of our time is to join up with the horde to make the base take go faster. Heck, if you're not flying a late war monster plane, you're not being as effective as you could possibly be if you were flying one of the best planes.
With that said, I still agree it's bad for the game.
If the gameplay of this suggestion were actually 'fun', people could do it already. Bail, sit in the middle of nowhere until the storch/C47 gets there, .ef, .join the player, and sit there as he flies back to the friendly field and lands. Have the rescuing pilot announce on 200 that he rescued the rescuee in a C47.
I would respectfully submit that the reason this doesn't happen is because it's not actually fun gameplay, and the only reason people want it is to avoid negative marks on their score.
Wiley.