I suppose if you don't reckon Air Traffic Control is necessary for Airline aircraft at busy no tower airports when in IMC - then there is no problem.
But it makes you wonder why have ATC at other than busy city airports.
I would have thought that a proper " control " service with actual enforced separation standards would be safer than a " do it yourself " radio arranged - no standard required " service.
I know that if we followed the proven US system and trained existing en route controllors to do the terminal service at airports like Ballina that safety would be improved at very low or zero extra cost.
We have had serious incidents at Bundaberg and Orange - we have been lucky .
Let's try it at just one airport before we say it won't work or it will cost too much.