I believe you, cause as a historian nerd, this was common practice in Europe too.
But personaly as an albino girl without any protection against sun, I see it differently probably. I would rather be able to spend any time under the sun, yet I can´t.
Also, I always seen darker skinned heroes in OW as more beautiful. Phara, Symmetra, Illari…and don´t get me started on guys.
But I stil find it weird to project this into a game.