Or maybe it is still a fact, but the definition of autism/Asperger changed so it is no longer true with the new definition?

There seems to be a great bundling going on, where people with a wide range of various problems gets bundled under large umbrella terms like "ADHD" or "Autism". Before Autism and Asperger was different, now they are the same etc. and some even argue that ADHD and Autism are the same thing.

Edit: Btw, there was one stereotype that was never true, that Autists didn't have empathy. Autists always felt empathy. What they were said to lack was the ability to read people, not feel empathy for people. Not being able to read people can be said to reduce "a person's ability to relate emotionally and socially to themselves and others", so that statement wasn't wrong with the old definition/understanding.