Hey dude You seems like rejecting the whole stall teams just cuz of Unaware clef. Let us take an example If sun, rain,sand,ho balanced team is more common would u try to put threads regarding ban of sun, rain,sand, ho and balanced team? Cuz there are also Your so called new player (Since u are professional) who have problems with rain sun and every other teams. And If they can be played without any restriction why would u want to give restriction to Stall team. The way you are like saying Ban drizzle pokemon in rain team and drought pokemon in sun team.
And also i have seen many balanced team with unaware clef. Wait are they even balanced? Might not be in your view since they have Unaware clef a stall pokemon. I apologize if i said anything wrong but i am 100% sure i am right ;)