In the real world, every time there was an armour improvement, it was swiftly followed by a weapon improvement, and visa versa.
I'm perfectly fine with it being possible for me in full armour to be one hit by a lancer, a crossbow bolt if I'm too close or if I ride too fast at a pike. That's literally what those weapons are for.
That said, I'm not going to complain if there are tweaks done to the different armour types and classes. I just don't want to lose the motivation to use good tactics by becoming an invulnerable tank.