Valid point. I came accross PRZ through an email, and we are currently going through CASA to obtain our company ARN. .
With that the first thing we did was sit through an hour on risk, liability and insurance.. fun - makes you never want to fly an RPA!!.
So PRZ are relevent to our current risk profile.
Anyway. The CASA regs state they encourage recovery devices.
When those recovery devices utilize ballistic parachute system including a pyrotechnic charge they must comply with the dangerous goods regulations part 99. I assume thats to carry or consign dangerous goods under section 23.
I don't see anything on stock photos to imply compliance, or any literature to suggest compliance with these regs - yet.