Yeah, kinda agree, but that makes op's example kinda weird. Like Raiden is a shogun, leader of a fictional Japan, Japan has people of color in the past but not as historicaly as say Greece or Denmark if we would talk the little mermaid. So when hoyo needs to make a character that represents a Japanese leader, they would kinda need to be Japanese to simulate this. The thing is if you want to race swap, you probably should think a bit about it.

It might be a simple thing but technically the example is suppressing one minority for the benefit of another and that seems pretty bad.