14 Deg AOA, not stalled, 16 Deg AOA, stalled, a 2 deg pitch change isnt what i would call a significant manoeuvre
What happens when, during a straight-ahead, level stall the wing drops and the bank angle exceeds 60 degrees? According to CASA that is now an aerobatic manoeuvre.
How is an instructor meant to teach stalling in the final turn, when often a wing drop can develop beyond 60 degrees? Come to that, what happens if Joe Bloggs the non-instructor wants to go and practice final turn stalls and the same happens?
On top of all of that I would suggest the pitch change, especially with a power-on stall, could be considered abrupt enough to qualify as 'aerobatic' by CASA's definition.
In my mind it is a very simple case of adding a paragraph that stalls in the clean and approach configuration, with power off and on do not qualify as aerobatic manoeuvres for the purposes of the regulation.