@DozyWannabe
Final report: "The trimmable horizontal stabilizer (THS) began a nose-up movement and moved from 3 to 13 degrees pitch-up in about 1 minute and
remained in the latter position until the end of the flight."
The sidestick was held ND, at least in couple of occasions
Notice the neutral position of sidestick. The NU stop is close to vertical
The NU travel is much shorter than max roll command. If you have a heavy hand pilot in distress, my supposition "holds water"
AIRBUS SIDE-STICK OPERATION - YouTube