some people like the ever so cute *** play in div 3 at the moment but no one can deny that he is at least low div 1 to mid div 1. These people may not want to play in AFC competitions at a higher division but do have the competency to play easily in those divisions. You can't deny these people the privilege of playing in these higher level pugs solely due to their choice not to participate in the higher divisions so there must have to be way to determine the skill level of an applicant based on many factors and not only whether he or she has participated in the AFC League at a certain level.
Finding a way to determine someone's skill level is hard. Furthermore, if it were to become arbitrarily defined, it may become prone to abuse. I think the current method is still the best, keeping AF 1-3 whitelisted, AF 4 open and AF 0 being an exclusive group that is based on both the player's ability and the willingness of other members to accept him or her into the group.