You've gotta love the spin out of Airservices' Dominique Lamb:
For Airservices Australia, those planes will be able to take off during that period of time and we will do everything that we can do to minimise disruption for all of our travellers.
We understand that they will be able to operate across the sector at that time and we know that they will still be able to take off.
Of course the aircraft will be "able to" take off. And they'll be "able to" land. Whether there's no added legal risk for the operators in doing so is a related but very different question.