/QFT
Well, considering that 42 was the AC of my ranger at level SIX, why, yes, you might imagine that at level 16 it might not be particularly useful. But just because you're a barbarian doesn't mean you should ignore damage mitigation, nor is it impossible to reach a decent AC. (enhancements that help you get more healing out of each cast (human), displacement (elf), DR docents such as defiance (WF), etc)
Having said that, yes the barb armor was a particular bad example from Venar. A better one would be one in which he doesn't use magic weapons because he's scared of magic. About as fun as the "wizard who got traumatized in an experiment and doesn't cast spells, just swings his quarterstaff", etc.