It takes MUCH longer to land, taxi, wait for the rearm and then take off than it does to just tower and select a new load out.
If you are bingo rtb and hear that nme buffs are otw why would you want to wait that extra couple of minutes to taxi and rearm?
If you towered, selected a new load out, and then rolled you could be 5-6k up before the guy rearming could take off.
I don't see the point at all.
-1