It actually does they are translating what they say into english, they give their sources just read what they say and japanese historians have stated they think he's a samurai but you pretend like they don't exist.
Quote
Jeffrey J. Hall 
@mrjeffu
A widely-shared tweet by Historian Oka Mihoko (University of Tokyo) says the status of "samurai" was vaguely defined in the Sengoku period, so it could be fair to refer to Yasuke a samurai. [This isn’t an endorsement of the various other claims Lockley made in his books.] (1/4)
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