I’m not convinced that the headline properly represents the content. I think it’s unfair to imply that the characteristic of introversion is correlated to a deficit in the ability to process emotional input in realtime. I would consider myself highly introverted, but I don’t identify at all with the emotional reaction of the author.

It’s possible that in his specific situation he is both introverted and highly emotionally responsive. But it’s a logical fallacy to then extrapolate that connection to other individuals with only one of those attributes.