I dont know... I am not a pilot, but personally, if I knew for a fact that the parachute will save my ass, no matter what, and at the same time, was not sure about my ability with power off landings, I would preffer the chute as well.
Also I dont know the location. Maybe the field he landed on was not in a good position to glide to, and there were no better options. There are trees in the last pictures - maybe he was worried about them. Maybe he just could not asses it well from his position. He did mention that his first choice was an airport and then he went looking for dirt airstrips, so it was a premeditated decision. I do not think it was a bad decision, riskwise.