TFA doesn't even draw an "equivalence" between those two positions; it merely misuses the word "skeptic" to mean "true believer in the Singularity."

TFA mourns the disappearance of true believers — those pundits saying LLMs would quickly achieve AGI and then go on to basically destroy the world. As that prediction became more obviously false, the pundits quietly stopped repeating it.

"Skeptics" is not, and never was, the label for those unbridled believers/evangelists; the label was "AI doomers." But an essay titled "Where have all the AI doomers gone?" wouldn't get clicks because the title question pretty much answers itself.