VH-XXX, you should've provided the full extract from the VFG as that bit about stalls not being aerobatics "for the purposes of the above" I guess means what it says i.e. for the purposes of the above only. i.e. you can do stalls IFR, at night and you can do them in a normal category aeroplane.
Under the heading of aerobatics per CAR 155 it specifically mentions straight stalls with that specific exemption for the requirements above. It then goes on to state that 3,000 ft is the minimum height.
It still seems to me that CASA's rule is 3,000 min height for straight stalls.