Please stop specifically referencing TTN - which like all other legitimate providers, uses the LoRa Alliance specifications. Your questions are universal to LoRaWAN and anyone using it in Australia.
As a SCPF provides a denial of service to a network, we just don’t discuss it because we don’t want them. See Single Channel Packet Forwarders (SCPF) are obsolete and not supported. And because they are a DoS attack, we aren’t going to facilitate finding somewhere to discuss them either.
But more importantly, there is absolutely no need to discuss them. They were created at a time when gateways were impossibly expensive for Makers. Now gateways are relatively reasonable in cost AND there is now an official One Channel Hub specification with is basically a legitimate SCPF because the LNS knows how to manage the gateway so that it does not represent at DoS attack on an network in it’s coverage area.
Generally, I’m sure you aren’t, but when someone starts understanding the limitations, they are trying to warp time & space to achieve the impossible. LoRaWAN has a core use case, battery powered sensors sending in data at intervals measured in tens of minutes.
You can see the reasonable practical limitations here: https://avbentem.github.io/airtime-calculator/ttn/au915/30 - the thirty byte payload is what I’d describe as plenty, maybe even large.
Assert location via GNSS is a thing. Tracking is marginal. Real time tracking can’t possibly work with legal limits and has gateway coverage to consider.
I’m not sure what you want to achieve by picking at the legislation. A pile of radio experts will be in the federal comms regulation dept who will have been asked about radio comms for the legislation. At the point of creation of statutes there is a wide consultation with the obvious names but generally anyone can comment. If you are taken to court then you can address a jury of your peers on why you think you abided by the law. I’m sure many of them will lose the will to live with the details, the physics of which are off in some very niche corner that intersects with black/white boards full of complicated maths.
If you want to worry about something, worry about some Sheila in Hollywood who invented spread spectrum technology in the 1940’s.
Or tell us precisely what you are worried about.
Or is this just a very deep rabbit hole you’ve fallen in to of rather academic application that you’ve pulled a few of us in to.
If you have an actual use case, do share and we can help out.