As somebody who identified a lot with what's in that article I can say that I haven't just made peace with having been "different" but I love it and wouldn't want it any different comparing my life today with that of the arrogant non-nerds who made fun of us back in school.
Your parent comment is arguing against perpetuating the wrong negative connotations and lack of understanding of autism.
Not to say the original author was doing it maliciously, I don’t think they were.
(yes, I know we're all on the spectrum somewhere, but a diagnosis is defined as it impacting your life severely, and I think many people would say that I have many autistic traits that are negative).