I think you must be easily impressed. My V Strom'll do most if not all of that terrain, from what I saw on the video. I think it's a case of just not being bothered about dropping the bike - in truth, that's the most noticeable inhibiting factor, not the bike. Most people are just overly cautious about dropping their pride and joy.
I'd say it would have to be shown on a lot more difficult terrain than that to be the equal of the 660Z.