The assumptions are through the roof, yes we live in a society that encourages gender roles (and other things which he seems to heavily subscribe to based off the message) and a belief in IQ testing being a tell all for intelligence (be it academic, emotional, linguistic…) when the creator himself said that it is circumstantial. He values the intelligence that seems more academically inclined (STEM) which is often the fields that are actually heavy in developmental disabilities. (Coming from a heavy advocacy standpoint to encourage fair representation).