It's just a reference to the style in which roadside attractions, circus show performers, and fortune tellers are billed. The Amazing Randi was the man's stage name so it comes together for a clever title.

I see the cleverness in the title; I also see that it's most obvious, and literal, interpretation is one of putting down his skepticism. Before reading the article, I thought it was going to be about how James Randi is too skeptical.

> That NYT article is a put-down.

Au contraire, it's the fluffiest of friendly journalism. "Alvarez told the agent he was deeply sorry for the trouble he had caused the real Alvarez — who he believed was dead but turned out to be a teacher’s aide living in the Bronx." but no reaction from the real Alvarez or any description of that trouble, which was considerable.