So? The genre has a limited toolbox. It's swords and magic. They're not going to implement assault rifles just to be different.
They could definitely add some new weapons.. crossbows, spears, warhammers that look like hammers and not staves, thrown weapons... there is tons of room for addition just in the weapon department alone... look at the amount of weapons in D&D, most of which are based on real life weapons...
Or, maybe we could smith different styles of each armor? Why can I make 3 different styles of iron and steel armors, but only 1 style of dwarven, orcish, ebony, daedric and dragon?
I don't want my character to look like every other character in armor made of the same materials, unfortunately, there is no choice.