Sully is a professional contrarian, only he doesn't have the personality or charisma to actually make a decent living at it. When it comes down to it he's just a guy who writes essentially the same pessimistic stuff over and over again, changing a few names here and there. If he's right, then he's quick to say "I told you so." If he's wrong, he pivots to a different argument. It's not unlike several posters on this forum who think they know everything.
Not really worth my time (no, I didn't read the article, but I bet I can hit all of the salient points dead on).