Out of curiosity, what happens with the pitch/power dynamic coupling outside of normal law? For instance, if power is advanced to exceed that required for level flight, outside of normal law, will the aircraft pitch up unless commanded otherwise by pilot or the autoflight system?
Secondly, would the stab trim movement be the FCS attempting to trim the aircraft to relieve the elevator load from the commanded nose-up attitude, in other words, everything was behaving as it should?