I guess the culture in Oz is that many believe that a frequency should be monitored in the name of good airmanship. I guess if that is the case then the selection of that frequency should be simple and standardised so as to gain maximum benefit from not having the music on.
Maybe the belief of many and your guesses are wrong. Isn't that what Dick is suggesting?
The MULTICOM fills that role when operating below 2000 or 3000ft agl.
I thought Dick was suggesting 121.5 was all you needed to remember.
Like it or not, there will always be noradio aircraft about, hence it is better value to look out rather than play with the iPad......
And therefore all this obsession with what frequency people should be monitoring when in G maybe a waste of energy and focus.