Artisan thralls are not combatants

So i’m trying to tame thrall that is supposed to be a blacksmith or a cook, but they are bludgeoning me to death with a mace.

I’m not saying they should be disarmed completely. I can understand maybe a blacksmith knows how to use a weapon, sure. A cook? A tanner?

The new combat is great, but are artisans also martial artists?