Let me try and put this another way: Currently players new to the endgame scene face a problem oddly similar to that many attempting to enter the workforce face: everyone wants "experienced" members for their PF, and it's rare indeed to see a group actively open to teach newer players. There's not really an opportunity -for- players to learn anymore except through DF, which is almost always a rage-inducing waste of time, or by opening up their own parties, which often never actually have people join them who have any actual experience. The proposed "clearance condition" would exacerbate this problem, so regardless of whatever pros it might have, it really shouldn't be implemented.