ADS-B OUT allows ATC to have the situational awareness of your position relative to other aircraft (terrain, restricted airspace) and be able to provide you with a separation
ATC can do this.........where they have coverage. But where is their coverage and to what level?
ADSB is cheap compared to radar, much much cheaper. But if ASA had coverage to the ground, then they'd be sort of obligated to provide a service. Which means they'd be obligated to increase the amount of Controlled Airspace, particularly in areas like Ballina.
ASA don't want a bar of VFR, VFR is the dog**** on the sole of your shoe when you've walked into a nice whiskey bar. They can't make coin out of VFR, so **** right off. It doesn't matter that the odds say that it'll be a VFR that hits a Part 121 (or vice versa) at Ballina.