Interesting that throwing is not mentioned, which most desperately needs a nerf in reach and damage.
Make xbows a bit harder to use without making them less powerful: yep. If PD is the best way to go can be discussed.
Less arrows: xbows already have more ammo than we do per bag, most archers sacrifice two weapon slots to have enough ammo, and I guess we agree that archery has had its butt kicked enough.
Plate buff: sorry but that's a joke. Already almost impossible to take down plated guys with arrows (you need several of them, even at high PD, and low-level archers already have their arrows bounce when they shoot turtles). In reality, at least the longbow could one-shot plated enemies at longer distance than most maps in c-rpg are long... would love to hear the whining of the turtles if we had realistic archery in c-rpg... ;-)