Mr Case is not the famous Magic guy from the OKCupid article. Mr Case was just trying to impress you by sayingg he is like the Magic guy. The actual Magic guy did a AMA on Reddit is is a much more pleasant and well-adjusted fellow than Mr Case.

It is just one poorly written line in a poorly written article.

That link is an instance of people being marginalize for playing Magic. That's not him mentioned in the article - the guy mentioned in the article is a world champion, and works at/owns some sort of investment firm. He isn't a software consultant.