I think the airlines (and this is specific to QF in this case) should just be honest and identify that their costs have gone up and hence they will be requiring more FF points for the award flights.
And then if they want to offer a "Points + Pay" option, that is fine and it gives people choice. But that is how it should be sold - as a co-payment to reduce the number of point needed for the award, not as a points-surcharge to remove the imposition of a cash co-payment to recoup increased operating costs.
Instead, they try to use the same deceptive approach that the increase in fuel costs is not an operating cost but some new extra cost being imposed on them in the same manner as government taxes. Including the increased fuel costs in the "extras" and lumping it in with legitimate government taxes and airport-imposed user-pays fees is, in my opinion, extremely deceptive. And I believe Qantas (and most other airlines) are deliberately lumping the revenue collection called "Fuel Surcharge" in with the legitimate Taxes and Levies in order to make their fares appear artificially lower than they really are.
If the costs have gone up (and I don't think anyone would believe they have not), then raise the price! That goes for award flights as well as paid fares. But continuing to hide behind the deception that fares are low and hoping the travelling public will somehow believe the yarn that the fuel surcharge is really a tax is just pure deception in my view.