crisper,
You state:
”The safety provided by UNICOM is so far untried”
Where have you been living? Obviously not in this world!
UNICOMs are proven all around the world, or are you not prepared to copy from others?
Have you ever noticed that all of the airline aircraft flying in Australia are actually made in other countries and were originally certified to the standards of those countries not Australia?
I have been attempting to bring in the North American style UNICOM for over 15 years with no success.
What happens if I pay for an air ticket for you to pop on a flight to North America, and look at a few of the thousands of operating UNICOMs which substantially improve safety, and are not operated by retired air traffic controllers or flight service officers.