I believe that some of this forums nautical historians are missing a couple of things on pre-WWII RAF and Air Power:
1. The RAF was under considerable threat of being disbanded in the 1920's due to the economic constraints of the Depression, the 10 year rule (sic), and Navy/Army shenanigans
2. It was a fascinating period for aircraft; Air Power doctrine post WWI not only forgot the recent tactical lessons but it also created significant emphasis on strategic bombing campaigns ("air fleets" and "the bomber will always get through") partly as organisational wishful thinking and partly a reaction to the horror of WWI trench warfare. It was widely believed by politicians and the public that wars would be over in weeks after cities had been leveled with gas and explosive: due to immature technology, the promised level of destruction did not happen and led to RAF night area bombing (see the amusingly named 1941 Butt Report "If the number of bombers actually dispatched on a raid is used then the number of bombs within 5 miles of a target has been quoted as low as 5%."
Military Histories - The Butt Report)
As a result, the RAF had both the popular doctrine and professional ammunition to justify its existence and the limited RAF resources were prioritised towards bombers. The RN/RAN did likewise in turn and started WWII with small numbers of everything, especially escorts. Obviously the same for British and Australian Land, which were actively steered away from their end of WWI type, continental armies.
Therefore, it's a long bow to draw to say that FAA, Fighter and Coastal Command, and coordination of the tactical air support first used in WWI, were deliberately underfunded. Again, depression, perceived 10 year rule etc. The rationalised priority was Bomber Command, just as today with current resourcing not covering all RAAF requirements, in depth, and funding is allocated to the competitive missions. It's even more of a stretch and plain wrong to say strategic air has failed in everything; 1944 and 1945 had a few successful strategic campaigns, in both theatres.
And to quibble, all sea, land, and air tasking are in support of the national objective, not stand alone somehow. Hence why, as a whole, the BLACK BUCK missions were ultimately successful VLR sorties.
In that vain, whilst these Air Power history discussions are fascinating they neither prove nor disprove the need for RAAF VLR bombers. That decision will be made by CoA and ADFHQ over this decade if VLR, flexible, firepower is required in addition to the limited range, inflexible, contributions from RAN and Land.