I think what you're witnessing is the Perth "blow-hard" effect, wherein the culture has a proclivity towards hype and hubris if it thinks something is "world-changing", because Perth is an underdog city in the context of Australia, an underdog country. Perth culture promotes the idea that its citizens are bound by destiny to have a big impact on the world, since its literally a city on the edge of the world, very far from most of the major civilizing actions, and very isolated from most of what is going on. So it "has to be" a very progressive, "forward-thinking" place. Whenever someone in Perth invents something neat, its a "world-changing thing, invented here in humble Perth" .. usually turning out to be exactly the opposite.
(Disclaimer: Sandgroper.)