Brahma
Obi-Bro Kenobi-X
This is all especially confusing since the Seanchan are specifically described as a race of dark-skinned warriors and it is a group of badasses who dominate continents and harness source users (literally) for their own needs. It seems entirely unnecessary to diversity up the cast when the story will naturally lead you to strong, diverse characters anyways.
Fucking christ.
Pretty much this. I mean he did a great job of diversifying...well everyone. I can't think of any race being left out really. Aiel, Seanchan, Westlanders. Leave it alone. And fucks sake get the big three right no matter what.