I suspect this intersects with one of the textbook KANGZ myths sold to dumb niggers over the past half century, namely the "WE WUZ MOORS N WE TAUGHT WYPEEPOO TO WASH N USE SOAP N SHEEIT" schtick that derived from pop culture depictions of medieval europe and muh islamic golden age narratives which KANGZ grifters predictably appropriated as their own history as they have so many times before, and using the trusty "DEY BE A NIGGA IN DIS OLD PAINTING" method of proving we wuz anything and everything they found a handful of 17th-19th century orientalist paintings depicting rich white women with shaniqua bath attendants in some harem setting they were able to add this to the official nigger history canon, and if my suspicions are correct this predictably caused them to be extra defensive of their genetically superior understanding of hygiene.