The tanks already pretty much fall into the “barely functioning in terms of kit” design

They basically all just play as simplified melee DPS but when a melee DPS would push an attack button a tank will instead push a defensive

If you took the tank timelines and replaced every press of a defensive with a random 4-600 potency attack or a button that generated a small combo extender you’d basically be playing a true melee DPS

Healers just get the “bare minimum to be functional” tanks get the “start with a melee DPS and rip 5-6 damage buttons out of it”