Immigrants to the US from Spain and Portugal are not classified by the US Census as "Hispanics" yet anyone from the Caribbean, Mexico, Central & South America is. Where is the logic in that? There's none; it's all about domestic political calculations.
Any one who believes in "race" is basically arguing with the entire science community. Even 40 years ago "race" wasn't part of the Biology lexicon and even now, we've found NO 'race' genes. There is only the Human race and now we have the full human genome to back that up
I think the argument in the article acknowledges that. and the discussion of 99% similarity regardless of pigment and origin is commonplace.