If you think about how super power movies appeal to humans, then consider the brain surgery in Africa thing.
If I was black I would be pissed at that. Course I would be pissed about a lot of things, like affirmative action and mandatory awards. So I guess no one cares enough to be pissed.
There were no super powers for Black Panther’s sister.
She was just so smart and their tech so advanced.
The only thing I really didn’t like was Heimdall was black.
I’m pretty sure Nordic people didn’t have black gods.
Especially since they probably never saw them when the stories arose.