If you are talking this video:
http://www.youtube.com/watch?v=5MTWO2MCYKU
Again it's Jeep Marketing machine. For example the Compass in that clip (at about 45sec) is hardly what I would capacle of doing what I'd rade a C grade trip (in standard form).
Notice most of the "harder" bits are snipped of JK, with a few quick snippets of the other models. Don't get me wrong the new Jeeps are far more capable stock now than they used to be, and often more capable than their owners. But to claim a stock vehicle can do a A/B graded trip (without sustaining damage) is simply marketing folly.