It's an interesting approach by CASA.
If I were to operate a GA registered Jabiru powered aircraft, I would have no way of knowing that this has even happened. I happened to check the CASA Media Release section and noticed that this instrument came into effect on 23rd of December, but nothing has been sent out to operators by CASA so one could be blissfully unaware of this whole thing and then "illegally" fly into one of the prohibited areas or take flight without a passenger waiver in place.