Going back to my broader point, it was meant to explain why science is so reluctant to talk about physiological racial differences or even the entire topic of general intelligence. It's because those theories have a long history of being abused by racists to give their racism some credibility by tying it to science. The idea is that certain ideas end no place good, and I think you'll find some of those same sentiments in the opposition to evolution.
There is no "primitive on the evolutionary scale" or 'advanced on the evolutionary scale'. There is no progress in evolution, only adaptation.
I agree that one reason that people don't get into this field is due to the racist that have so thoroughly muddied the water, but there is really little utility in it OTHER than assigning skulls to one group or the other in groups that are not otherwise different in much of a relevant degree. The motive behind this is usually racist to begin with.