I'm not a big fan of agile either but "over 40" == "the smell of death"? Seriously? Not a convincing, or classy, opening line. And this was posted by the CEO of Assembla.
"Do you notice how as people get more and more experience in the industry they start to gravitate more towards agile processes?"
I don't agree with agile either but I actually have reasons. But to be fair, the article did say "Seven Things I Hate ...", it didn't say "Seven Good Reasons to Avoid Agile". The thing the article leaves out though is a reason for me to care about the fact that he hates something.