This is definitely a comment worth reading but I can't say I agree 100%.

I just don't think it's ever appropriate to tell someone else how their creative work must be done.

I have a con-world where the largest and most organized empire is almost entirely made of black semi-human races, and one of the next largest is predominantly turkic-ish... It's not because I have some ambition to subvert everyone's cultural understanding and normalize minority characters... That's just how I figured migration and development of civilization to go, based on the configuration of continents and distribution of resources... All stuff I had already worked out. I also wrote numerous nonbinary characters but that isn't really ever relevant to the story, and none of them are shining examples of good people anyway.

Something like League - purely multiplayer with no real tangible/presented story - yeah there's no reason not to have more diversity. They pile on new random characters all the time with no consistency so there's no reason to have more of the same

Adding minority characters for its own sake though, you risk the problem of worsening the issue by creating a token character like you mentioned. A czech game designer trying to create an amalgam "african" character to appease people you never met sounds like a perfect recipe for that. I mean, people really interpret things in weird ways. I don't know if you recall this but when the Left 4 Dead 2 trailer came out there was a backlash because some fans were angry at there being too many black zombies. Well the game takes place in Louisiana...

I agree with your overall assessment & that medieval european fantasy is a ridiculous cliche, I just think it can sometimes be counterproductive to add minority characters purely for their own sake. They can be misinterpreted so easily I think, almost deliberately sometimes.

Comes down to this: all products that cater to many demographics have an innate competitive advantage over those that don't. I say just avoid a product if you really don't like how it was done, and promote and encourage alternatives. Or make a mod or something. The point is that fantasy needn't be a reflection of real life though.