This feels like the author has made the assumption that since they are an introvert, all introverts are like them. However, I think that introversion, like most things is a continuum, not binary. Take the characterization of introverts in the article: "They would rather sit in front of the computer than go out during the yearly college social fest." For me it isn't just a matter of "I'd rather be in front of a comput…
This is mental illness not introversion. You don’t get anxious about other things you don’t like. You might not enjoy playing board games or Russian literature. Does it stress you out and make you anxious? Probably not. You just don’t care.
And although it may seem ridiculous to you, there are people for whom board games and Russian literature are pretty stressful and anxiety inducing in the same way that public speaking is stressful for many people.
If you had also included math in your list of frequently disliked subjects, then it might be less ridiculous an idea