Interesting pictures on the link from TEEEJ. Airframe looks almost totally intact with a few obvious exceptions (prop and ejection seat to name two!). Obviously have no idea what went wrong but from the images one could suggest he almost got away with it...or did a fantastic job flying the aircraft before pulling the yellow and black!
Glad to hear pilot on the road to recovery. No doubt he'll have a good story to tell in the bar once the excitement has died down and to the grandchildren in a few years!
SW