You can see that their sample of selfidentified " blacks" only have a maximum of 50% african ancestry, for Bahia it's even as low as 36% , this seems to be a little bit off though to be honest...
^You're not getting my point. I'm saying that ancestral components as shown by DNA studies or (limited) 23&me results don't matter IRL, because Genotype does not equal Phenotype. especially in Brazil with its large segment of multigenerational mixed Pardo's..