While I can see that the presence of live seat components in the wreckage certainly posed a hazard to the first responders, I can't really see why the report is fixating on the serviceability of the seat in the aircraft. It seems to me that the ability or not of the pilot to have exited the aircraft prior to the accident is of minor concern, when we are looking at the type of accident, and the casualties caused on the ground. Does the pilot escaping make something like this any less of a tragedy? Perhaps they are concerned that they would have no one to interview.