My sense is that the AAIB have probably concluded it's a case of pilot disorientation
Having recently flown a Cirrus, I would be very surprised if that was the case. If ever there was an aircraft that was meant to be flown on autopilot, the Cirrus is it. I did an out-and-return from Van Nuys to Avalon (50nm each way) and the only time I touched the stick was on takeoff until 500' and in the circuit for landing, and at 200' off an ILS.
I've contributed to the fund.