To add weight to your point in regards to Australia's hypocrisy, there's an on-going case where a now ex-member of one of Australia's intelligence agencies blew the whistle on Australia's illegal surveillance of the East Timorese government.

Currently they're trying to prosecute the whistle-blower AND his lawyer for "revealing state secrets" as a tactic to draw out the process.

See here: http://www.abc.net.au/news/2018-06-28/witness-k-and-bernard-...

And for a larger history: https://en.wikipedia.org/wiki/Australia%E2%80%93East_Timor_s...

The ASD (Australian Signals Directorate - equivalent to the NSA) mission statement is: Reveal their secrets - Protect our own.

Which I suppose is in keeping with banning any non-purely-Australian-owned vendors from participating in any communications infrastructure project. I don't think there are any purely-home-grown Australian 5G infrastructure manufacturers though.