DW - yes, I am with you - the reason I mentioned it is because some seem to be looking at some sort of technical problem causing the accident when, as I think you can see from my posts, I put the major cause at incorrect stall recovery.
Obviously the technical issues must be looked at, of course.
I do not agree with your assertion, however, "that would likely have shown up in line flying by now - certainly at a previous handover test like the one in this case." - bear in mind the AoA sensor was thought to be faulty on this flight - how many other 'test flights' would fit that bill?