"Dang It" ... as the "Inner Rex" in me from the first (3rd) and now 4th time seeing this suggested. I voted No, and still No.
Dang, I accidentally at times forget to switch my Tier III armor (EES) back to my main level 35+ armor when welling and take fuck all damage and kill off the level 35+ Well monster that spawned ... do you really need Armor Prof?
Robes I understand, how about more dexterity = more agility and you take less damage with a robed character because they are nimble and swift to dodge more fluidly.