Thank you PBL - received and understood. I note you have now introduced another event into the stats, namely 'T'. I am reasonably happy with my somewhat 'dated' working knowledge of stats, but I am more concerned with the practical rather than the theoretical points here. It is primarily 'T' in which I am interested and like many pilots here cannot understand, and which I fear statistics will do nothing to clear.
How you, your fellows and AI sort out 'non-x' in technical terms is of interest, of course, but the root problem lies in the mindset of day-to-day operation of this system and the training for such. 'T' must be eliminated as far as is humanly possible and assuming no aircraft or extra human system failure in CGH would have probably prevented this accident.