Language categorization 
I understand your point that it seems weird to delete the "Afro-Asiatic" category from those articles. However, there were about 200 language articles that started more or less with "X is an Afro-Asiatic language." They can all be classified under different family groupings. For that reason, I think it is not helpful to have more than the larger subdivisions of the Afro-Asiatic family categorized as "Afro-Asiatic"  can't find anything when the label is applied to everything.