Game balance, 'what your used to' aside,
The fact that anything other than a crossbow, or maybe a longbow, can actually do ANY damage to someone in plate/full helm/articulated gloves/metal encased greaves is, rediculous.
EA knows this, its why you cant blow up a tank with a rifle, in call of duty.
And call me a historic accuracy chocolate chip cookie or whatever, but as long as thats the case, this game is kinda silly.
I dunno, I know someones gonna come in here, and say 'historical accuracy has nothing to do with gaming or crpg blah blah blah blah blah...'
Its not true. Sure the game has limitations, and concessions to them, but, the more ways you fit in simulated accuracy while honing balance, while its still fun, the better ANY game like this becomes.
So, if some math was added in the archery mechanics, that both made plate invulnerable to anything other than a cross or longbow, simulated semi-realistic penatration values on other armors, AND was balanced at the same time, well thats where things should be pointed towards. As long as its still fun.
My 2 cents