And just remember how much extra weight that truck had to deal with compared to a stock truck. Cage, spare tires, equipment to change spares, tools, navi/communication gear, two passengers, etc. There is no way stock shocks would have held up with that weight in those conditions.
edit: There might have been 3 passengers...
Cage and removal of stock seats would likely offset weight. Two spares and equipment is within the ranges of factory specs, so it'd be interesting to run it with stock shocks. IMO, it'd be cool to have a COMPLETELY stock truck with a cage, and see how it does.