What is the point of broadcasting your location on area, when it's more than likely no-one knows where the location of your position actually is? "All stations,,, all stations, can you hear me?? ABC is, arghh, 7 miles west of Fred's house, 1000 feet , tracking to join the circuit on a left crosswind, runway, arghh, 24" It's absolutely pointless doing that. You're better getting off the primary frequency and onto a specific one ie 126.7. When the traffic levels are sufficiently high, the aerodrome gets a dedicated frequency.
Shouldn't the discussion paper actually be HAZID workshops? Attended by a cross section of the aviation industry? Where hazards are identified etc etc???