Perhaps imagine this situation? A mate of mine has flown his GA aircraft towards a popular spot in the Flinders Ranges. Something goes wrong and his engine fails. So he makes the appropriate radio calls but there's no response from anyone. He carries amongst his other survival tools, a modern 406 MHz PLB which is registered with AMSA. So before he carries out an emergency landing, he activates his PLB. What if I was the first person that would be called by AMSA if the device was activated and he couldn't be contacted?
Wouldn't that solve the issue for you, Dick?