I must admit that it works pretty well for me, because I didn’t *find* any medium Armor without DEX limit. And my wizards typically wore robes, because they had no armor proficiency (I needed the talents for more interesting stuff).
The only thing that really made a difference is the heavy Armor without proficiency requirement. That’s a must-have, and that may be a balancing problem. But I actually was rather overjoyed to find it: finally a way to get out of an AC problem I had for one character for a long time.
I guess it would be a problem in a PvP game.
