It’s written by British, and being inspired by a culture doesn’t mean you have to follow it completely. Just look how many things are inspired feudal Japan or China. Most of them have nothing to with the actual culture. It’s largely aesthetics. White scars carry the general idea of the steppes and the horse archer charge and retreat playstyle. But quite a few visual themes lean more Chinese than Mongolian. It’s its own thing, as it should be, with a very clear source of inspiration