I've already pointed out repeatedly that you can bash naked and not notice the difference. Decided to do some PVP testing, and the effect was essentially the same. Used the same person, the same weapon, vs the same person. The only difference was I was wearing heavy beast armor in the first round, and naked in the second round.
Yes, armor has a very small effect. No, it not enough to notice or really even matter. It's silly. The only class that gets a defensive benefit from anything is the class who uses a skill to gain it.