Following the autotrim arguments - it all seems a bit tenuous to say the least. A trail of clotted cream perhaps?
Reading the interim reports again one can find no suggestion of this as a possible factor. I would submit that the only reason the stall was entered into and continued was the PFs actions. We have a known shock reaction for pilots - pull back on the stick and then a series of psychological effects which continue the action. Reread the third interim report (I admit it is harrowing reading) and it is clear that there was panic and a lack of understanding not a problem with the autotrim. Remember autotrim can be turned off by moving the trim wheel. There is no evidence that the pilot even touched it. Once again we are pushed back to training and lack of professionalism.