Honestly, the turning point of the article is the line "I spent most of the con trying to understand exactly why, rather than feeling like I belonged, I felt extremely uncomfortable, even repulsed." Before that it seems like an entirely reasonable report of a con experience, after that a post hoc justification for feelings of discomfort.

I believe that as a community we would do well to acknowledge that some people who share our interest in sci-fi and fantasy are uncomfortable at Arisia. I have heard this sentiment of "I was told Arisia would be like home, but it very much wasn't" from friends more than once. It is a valid complaint and not an attack.