If you look to the right of where it says "for the most up-to-date TSA carry-on.", you will see the little words "Click here." They are in white, and kindasorta hidden in the scissors hanging down from the top of the page. Clicking there sends you to the actual TSA website, and we all know that means what each TSA employee says then and there is what counts.

So Leatherman put the info there for all to read, IF you happen to see the "click here" part. I think it all goes back to the old "let the buyer beware" thing...