It's worse than that: none of those illustrations appear to be related to humor.
Edit: Looks like we've got a couple of New Yorker cartoon aficionados on HN. I guess I'll have to save my stinging comments for edgier content, such as Doonsbury and Garfield. /s
Remember, we're talking about an organization that apparently employs Andy Borowitz. Possibly his mere existence sucks any humor out of all surrounding content.