Looks like engine failure and ran out of luck on the landing. There's plenty of available paddocks out that way for a forced landing but you never really know what you're going to get until you get close to the ground. Not sure what height they were when they lost power but what looks like a good landing area at 2500' may turn out to be not that great when you get down close to the ground. You can be lucky or you can be unlucky. Also, if there was in fact smoke coming from the engine prior to impact as has been reported, this can make things tricky with impeded visibility.
I've not flown this type of aircraft and know very little about them. Could it be that it is not quite as 'robust' as your everyday VH registered Cessna/Piper..? They look pretty sleek and modern, but how 'crashworthy' are they..? (If there's such a thing).