It amuses me greatly that when they are trying to write a "100% black evil" character, they fuck it up and accidentally make them look extremely justified.

But when they want that "cool grey anti-hero" like Sylvanas, they fuck it up so badly that they have to bend over backwards to make her not responsible for her actions and look good again. And it still only works because of how obsessively people want to fuck her, one of which is the head writer who self inserted as Nathanos for a whole expac and broke the cringe meter.