It might be esoteric, but what I got from Owain was two behaviours. In the long term, the a/c has an all flying tailplane. In the short term, the a/c has a standard PITCH control, one that degrades to "neutral" over time. The aircraft is always seeking cruise, (or attitude: establish), and this conflicts with the need to maneuver, at times.
Which could lead to confusion, unless the configuration (instant) can be sussed visually (screen), or by feel? "What's it seeking?"
Why would this a/c seek to "establish" and hold an attitude that required constant attention from the handling Pilot? An attitude that was intended to be short term, perhaps? PF had the ROLL under control because he knew what was going on, albeit badly. Right, wrong, or sideways, he did NOT get what the PITCH required. This speaks to the a/c's programmimg in ALII. For whatever cause, the handling pilot was unable to 'get'. Is the a/c always correct?
Just a question.