If you read the paper cited you will see it is even more dramatic than that: "Thus, the color-naming system of Waorani, like that of Karajá, does not fit the st

If you read the paper cited you will see it is even more dramatic than that: "Thus, the color-naming system of Waorani, like that of Karajá, does not fit the structure of perceptual color space. Although neither Waorani nor Karajá has been regularly held up as a counterexample to universals of color naming, they both are genuine counterexamples" Also, from the actual Himba study (by the way,the study was conducted and published) "Himba participants show categorical perception only for their own linguistic categories and not for either the supposed universal categories of English" Roberson et al., 2005 (full citation in another comment)