This could be why:
Amanda Marcotte, at the link above (from which I also lifted the screen capture), helpfully points out that ketchup slipped to second place on America's tables about 20 years ago. That was a few years before Drudge got his start as a Hollywood/Washington gossip source, dumpster-diving for overnight box-office numbers and apparently vowing never to update his site again.
But even though I wasn't much of a Seinfeld fan, even I knew about the classic 1992 episode “The Pitch:”
If your browser won't display the embedded version, click here.
The Drudge Report: A blog about nothing.