It's a matter of being able to make it fit with other items, as often making a unit involves mixing a lot of items from different creators. Getting versions of your medieval gear flat shaded instead of smooth would just help them fit in easier

my other models pair well together, but if you prefer, you can change the smoothness

Would you ever consider releasing your medieval models flat shaded instead of smooth? None of the normal AW3 models are smooth shaded so it looks pretty out of place to me.