I'm not saying I didn't read the article because of it but it does just start the article off with a bit of annoyance. You can't argue that anywhere you enjoy going in the online or physical world is determined by emotional responses.
Imagine when you got to a restaurant that has music annoying loud. You may still enjoy the dinner food, but you had a bad experience eating the good food because you were annoyed with the music. That scenario similar to this article. You could still enjoy the article content but you were annoyed because of the bad experience. And after so many of those bad experiences you may just think "you know what, I'd rather eat somewhere not as good just because I won't be annoyed by loud music."
If you don't think that small things like this (that can easily add up over time) do change how your viewers see your site/company (regardless of the content), then you need to think again.
However, I could be wrong. I mean, everyone did love the animated images, colors, and sounds on GeoCities which lead to their industry takeover and incredible success. ;)