Not really relevant. There are many high time non-IFR rated pilots out there.
While I can understand the fear associated with this guy's situation, am I the only one who wants to tell this guy to stop yelling Mayday???

Same here. I don't want to sound mean but that exact attitude, faced with an emergency is unbecoming of a pilot, in my opinion.
The typical response from the Chuck Yaeger wanna-bes and hanger flyers you find on aviation forums. "Unbecoming of a pilot" - like anyone cares about that when they have totally lost it and just KNOW, like this guy did, that it was over. Most pilots with some experience would not be critical. It takes a lot less than what this guy experienced to scare the hell out of most people, pilot or non-pilot.