I think the biggest argument would stem from the fact that despite Hazel being mixed, she's still very black. It seems like just a phantom plot point to be able to make her Grandma white, who SURPRISE SURPRISE, is actually the main villain.
Even when they paint Roux as the main baddie, it turns out he really isn't. He's just a puppet to a higher evil.
Every opportunity to just create a story rooted in the south and featuring black story tellers and family but just haddddddd to make sure they demonstrated that whitey is always the bad guy
Even in the days of "every protagonist is a bland white guy", the villain wasn't black often at all
Oh and of course, the creative director stating that "white gamers were a mistake" probably should be held against them