The article contains the line:

Average cranial capacity in Europeans is about 1362; 1380 in Asians, 1276 in Africans. It’s about 1270 in New Guinea.

What's wrong here? 4 degrees of accuracy for brain size and no error bars? That's a sign of someone being either intentionally or unintentionally dishonest.

Quick Googling shows that there's a paper published that states that European's average cranial capacities is 1347.

Rather then describing the facts as they are he paints things as more certain than they are. I think that people who do that in an area, where false beliefs lead to people being descrimited, are in no position to complain when they some social scorn.