While I'm all for diversity in games, there wasn't a "controversy" when Witcher 3 released. There was
one specific article published on Polygon taking WItcher 3 to task, and that piece was surrounded by similar articles championing for diversity throughout the gaming industry, not just that specific game.
I don't like the revisionist history about this.
The game that DID get specifically lambasted for its lack of diversity was Kingdom Come: Deliverance, three years after CDPR's Witcher epic. Because of
Vávra's milquetoast, if not negligent, if not passively-aggressively hostile response to criticisms, I will not touch that game.
As for the Witcher novels, Sapkowski only specifies that Geralt is pale-skinned due to his mutations. He does not explicitly mention race in any of his books with the exception of elves and dwarves. One could argue that at most, the Zerrikanians who accompany Three Jack Doors are exotic (glad to see them as black women in the show, btw). This leaves room for creatives to do as they please, on the show, or in the games.
The folks upset about the diversity in the show are making the same mistake fans of Harry Potter and Hunger Games made when Rue was black and Hermonie was cast as black in the live-action.
Folks behaving like Witcher 3 faced controversy concerning diversity and CDPR just shrugged it off are making anachronistic arguments.
BTW, Poland is 98% Polish. I would be less forgiving if the game were developed more westward, or from a Japanese developer who has been been in the business since the 80's.