* There aren't that many real historical accounts about him so people can argue all day about stuff like "Was Yasuke a real samurai?" without clear evidence about who's right.
But in the intervening years, Ubisoft and/or the entire AAA games industry is now seemingly driven by a need to conspicuously showcase diversity and inclusion (from some gamers' viewpoints). You could also view it as the gaming industry trying to broaden its audience and get out of the pigeonhole of catering to the base desires of sweaty manchildren, but either way, it's upsetting a certain type of game consumer.
So, when Ubisoft finally got around to setting Assassin's Creed in Japan, and they picked pretty much the only person around that time period who wasn't Japanese as the main protagonist, seemingly to meet diversity goals, capital-G Gamers went bananas over it, like it was a personal affront to them.
"In May 2024, it was announced that Yasuke would be a major character in an upcoming video game (Assassin's Creed Shadows). While onwiki disagreement about Yasuke's status as a samurai predates this announcement, the historical figure's Samurai status became part of a culture war around video games (J2UDY7r00CRjH evidence) that media sources have described as a continuation of or successor to Gamergate, leading to an increase in attention to the article. (Symphony Regalia evidence)"