There is the autistic spectrum, and there is understanding of people and psychology. Autistic people might have a hard time understanding people, but it's not like everyone else is magically super knowledgable about human psychology and other people's thought patterns. If that were the case, then any non-autistic person could be a psychologist, no fancy study or degrees required!

Unless your point is to claim that Karpathy is autistic. I don't know whether that's really relevant though, the original issue was whether/how he failed to recognize the alleged hype.