You might want to read the original post again. The part where it says...
"This would be able to let the "ditchee" get back to base and cash in points."
AHA! You got me there, I missed that part.
Well,
I wouldn't and haven't asked for points to "cash in" when I've made this same request (rescues) in the threads concerning the PBY and using Jeeps to refuel aircraft.....
That being said, when you have kills and you get shot down and lose your plane, either ditched, captured, or killed, you are still awarded perks for those kills, are you not? Just not as many perks as you would have earned had you landed them safely.
Why would you not be entitled to the same perks after being rescued and returned as you would have gotten if you had just .ef and been captured?