I don't know; considering you know what you're doing in AW you wouldn't ever have your jet in a position where 4 infantry could corner you like that. It's just very unlikely.
The whole point of :the joke: is that despite the unlikeliness of said events from transpiring, it can still transpire with the net effect of one downed Fighter which is a bonus for the Infantry that probably only exist for the sake of Technique score or Capturing (since they otherwise cannot deal with a Fighter at all). If you surround an Archer with four guys in an FE game you're wasting everybody's time since the Archer will not die until they are killed and unless you're buying yourself time to grind out supports (and chances are you're not even doing that since you've got four guys on an Archer and anyone who tries to support with any of them will be walking into the Archer's attack range unless you don't mind their support partners getting turned into pincushions).
Because honestly, what else was I going to list as a difference between two games in similar but different genres made by the same developers?