None of the things on that wikipedia page makes me think he actually knows anything about web servers. Sure, he obviously should know about some of the things that make the internet work (BIND, cron, etc) but nothing on there has anything to do with making web sites. All of it is about the infrastructure.
Either this article is filled with intentional hyperbole, or this guy doesn't know what he's talking about when it comes to serving web pages.
Ordinarily I'd be bristling at a comment like this, but you are articulating some stuff --- a little rudely, but still --- that I believe about Vixie as well. I won't pretend not to have noticed and let you take all the heat. Paul Vixie's reputation among software security people is a little bit fraught.
Which is what makes the article so peculiar. He's either being exceptionally sloppy or...I don't know what the other options are.
I think he might know a little bit: http://en.wikipedia.org/wiki/Paul_Vixie