Ah, the old unsupported 'we looked after you in the past, we'll look after you in the future' fallback position.
Why is it 'unsupported'? I never denied that W.A. may currently be getting the raw end of the GST and/or federal funding deal, but things change in time. For example, mining in Tasmania was significantly economically important to the colonies and early Commonwealth from the late 19th to mid 20th century, and as recently as the late 1990s and early 2000s, W.A.'s mining industry was contracting in size. Times change, and they can change quickly.