To suggest that the aircraft was un controllable or had a mind of it's own is rissible.
based on? flight data? there was none! Nobody knows exactly what happened and that is the point. The conclusions had no evidence and nor do yours
The whole point of this was that there was no evidence and therefore you can not
a) have a meaningful conclusion
b) apportion blame anywhere
and flat out into a rock? again, estimation in the absence of hard data
What is it with the blame culture? yes, I admit, I am less than happy with the Am's position. That is based on evidence not personal feeling as I do not know them. I do expect any senior Public servant to be equitable and clearly they were not. You can blame the advice but at the close of play, they take the big salary to take the responsibility. End of