I'm no pilot, only around 400 hrs gliding(300+ solo) but I personally think that if there was not a serious structural failure, all the normal dangly bits are present in the photographs, and the engine was at least "ticking over", why has this type of landing been used. Surely*, before pulling the handle, the pilot could have attempted to make sure his landing, by parachute, was over greenfield geography. My memories of "landing out" in a glider was the 5 s's, Size, Slope, Surface, Surrounds and Stock. This must be something the pilot felt was beyond a glide to an out of town destination. I hate to think of the result of this chute landing in a shopping centre, prop ticking over, mincing the populous. Whatever, I suspect a few might well ask if a few hundred pounds of "alooominum" arriving on their heads was something we ought to check we are covered for with our life insurers.
*sorry chaps I know " don't call me Shirley"
Smudge