After writing the response below I noticed you are in Australia. The answer is based on UK requirements and CAP520 is a UK publication.
For the purpose of air tests (3 yearly CofA renewal), the book (CAP520) says:
Power off
Balanced entry
Decelerate at 1 Kts/sec (accept height loss)
Then:
'Any tendency for a wing to drop at the stall should be containable primarily with aileron assisted by rudder to within 20 degrees bank'
Note the recovery technique, aileron assisted by rudder.
It only says that in this particular set of conditions the wing drop should be containable to 20 degrees. When no action is taken the wing could drop more and that would be acceptable
If these conditions are not met (power on, quicker deceleration) it is quite well possible (and not unacceptable) for the aircraft to drop a wing more than 20 degrees if immediate (and correct) recovery action is not taken. Most student would fall in that category. The correct recovery method in most A/C requires the use of rudder. The fact that CAP520 calls for aileron builds in an additional safety factor if the student in his panic applies the wrong controls.
So, if you are worried about the handling of the A/C try some stalls exactly as described above. Only if you cannot limit the bank angle to 20 degrees in those circumstances should you put an entry in the tech log.
Regards
Gerard