Given that their seat count has just about halved over the years it appears to be so. It is interesting though that the airline spins the QF9/10 as a high yielding route but it has now cut the East Coast to LHR routes by half.
I'm not sure what the point is here. Qantas have sold fewer seats to the UK over recent years than in previous years? There is increased competition these days, and Qantas needs a point of differentiation from other vendors. Being the Australian Airline is obviously not enough, and so they've cut back. They're hoping to recapture some of those seats with project sunrise.
But their core business is not flying people from Australia to the UK, as much as many here believe that it should be. The UK is one of the top 5 destinations for Australian travellers, but if Qantas only focused on that for international travel at the expense of Japan, Indonesia, New Zealand, and other more local options, or even the US, they'd be a poorer airline for it and an even more niche operator than they already are on the goal stage.
Some would say that East coast via "Australia" (PER) to LHR is similar.
So don't take that flight? Again, I'm not sure what point you're trying to make, but Qantas doesn't seem to think PER-LHR is a bad idea at the moment. Sorry if that's inconvenient for you.
Maybe it'll change in the future, I don't have a crystal ball. But if it makes fiscal sense for them to drop the Melbourne leg and instead run it direct from Perth then what's the issue? If using the F lounge in Melbourne is so important on your flights to the UK then vote with your wallet and either fly via Singapore or select another carrier that gives you that option.
While Paul Keating might say we are actually part of Asia, AU still has a significant connection with UK.
Geographically, and financially, we are absolutely part of Asia. It makes perfect sense to me that Qantas has more routes to Singapore, Japan, and New Zealand than it does to the UK.
Our sentimental connection to the UK is what keeps QF1/2 and 9/10 alive, and makes projects like Sunrise feasible. But it's not the only consideration they have when deploying the fleet.