It's pretty much metro. Premier rugby used to have the Sunshine Coast, but they folded as a Premier Rugby team last year and the Gold Coast Breakers has been rebranded as Bond University which is still based on the coast.
People do go on about pathways in country rugby, however it's important to note approximately 90-95% of QLDs population lives within 2.5 hours of Brisbane. Multiple country teams wouldn't be economical.
I think a strong case could be made for a Downs based team in Toowoomba considering they're only an hour and a bit away. plus they're a very strong rugby city with the likes of TGS and Downlands up there producing a number of excellent players over the years.
And I am baffled as to why kiwi's get stick regarding their intellect...
So common is this saying, I would look down on anyone who thought it was original.