How can you say that for sure? My son, after being upgraded, was then asked to move back to coach and was not given a new BP. I've seen this at least 2 other times in the past several months (someone with an upgraded FC BP told they'd need to sit in Y). I assume DL's systems will still show these people in FC even though they ended up sitting in Y at GA instructions.

To what extent would always requiring a new BP with the new Y assignment cut down on GA Shenanigans?