I would say we're in the position of having won the several battles but are in danger of losing the war.That word 'failure' again. But which model (as in "a failed model") are you referring to? NSW's? WA's? QLD's Tas'? They are all different approaches or 'models'. Many complants here about inconsistant approaches of the states. So which model has failed?
And again, my definition of "countrywide" is clearly different from yours.
Absence of central leadership allowed the Premiers to take a central role (and yes, I know Health is a State responsibility). This may have been advantageous in the early stages but they are now painted into a bunch of different corners. The State approach is hugely popular with the various State electorates, so who's going to be the first to take a more pragmatic approach? First State to accept any community transmission will be a pariah.