This all shows what idiots government parliamentarians are in Australia. If the issue is encryption, then there are very simple ways of using unbreakable encryption systems without relying on asymmetric keys (ie one time pad or Vernam cypher). Granted it will not suit all use cases, since a means of identifying what is the key to use needs be agreed outside of the network processes. That is face to face or via messengers, for instance. But since any file can be used as key (ie music, text, video, object program, etc.) and having a key larger that the text encrypted eliminates repetition patterns, this is a totally unbreakable system. Even quantum computing would totally fail in decrypting a message!
It is super simple to implement with a modicum of programming knowledge, it does not require any maths skills!
An example of it can be found here: https://gitlab.com/MidGe48/cryptopad
I can expand on the means of communicating and sharing keys which are simple and untraceable without requiring ongoing communication after an initial, simple, exchange.