This simply isn't true, though. If you look at armor historically, people were trained not just in weapons, but in how to effectively use armor. Such as how to move to deflect a blade away from unarmored areas or joints in the armor, or how to shift to take an incoming blow in a thick or reinforced section of the armor. Armor doesn't just passively protect when the other guy is trying to aim for joints, weak points and exposed areas.
your talking about technique which i addressed. that has no bearing whatsoever on the amount of protection it offers, that is just how well you can function while using it. if that were the case then someone should have told the highly trained french knights that were decimated by english longbows. if someone lands a direct hit on you, your in for a world of hurt no matter if your a squire or a battle hardened knight with decades of experience. as far as dodging is concerned you can already do that in game so it isnt included with the armor skill. and armor does in fact do nothing but passively protect you. if you stand still its not going to magically shoot out spikes or chains to block the attacker.
if it were up to me we would have fallout NV DT/DR system or better yet the typical dungeons and dragons system with different defenses against different weapons like slash, blunt etc. even mount and blade had a fairly decent variable armor system. this is one of the weak parts of TES games where they only give you one damage type and one defense type. takes away alot of the strategy that you get in other games. ideally you would use quick blades agaisnt lightly armored foes and you would have to use axes and maces against heavily armored foes that slashing swords would be pretty much useless against. but im kind of a realism nut to begin with.
as i said though im fine with it as it is now until someone comes up with less goofy looking high end armors. i really love the starter stuff like leather and especially scale but glass and dragonscale look about as sneaky as an fat opera singer with tourets syndrome.
although im loathe to loose more skills i wouldnt mind them having just 1 armor skill and then making the penalties for choosing light or heavy based mostly on the armor you pick. light armor offers far less protection and i mean alot less not this current system where you can get to the max AR without using exploits. and heavy armor should slow you down, use more stamina and be very difficult to sneak in. also, i think both types should have significant magic penalties so that someone who wants a high powered mage will have a reason to wear robes and circlets etc.