AK numbers limitation were tested before and it failed badly. also if GSs can't enter and monitor, then nonsense can happen easily.
further, imo, we need to fix so many other issues, then creating new broken problems. i understand your zeal to help the game, but creating more fracture, will only lead to more problems down the line. after all, do we really want to stop players switching side and entering for their own benefit. maybe they're making alts for other faction, that needs help etc.
Imo, bottom line is not to create more game issues, but fix the ones that we already have. once those are done, then we can test alternate options.