I've had the same negative experience on Qantas.
It started with an underwhelming business class trip to LAX and has been followed by a succession of domestic flights with less than stellar crew attitudes, let alone service.
To be fair, flashes of the "old" helpful, tactful, skillful Qantas service sometimes breaks through, like when stupid Sunfish was late for a flight............"You don't need to run Mr. Sunfish because the aircraft can't leave without me and I'll be walking behind you."
However the corporate dead hand seems to be squashing the life out of the airline and the crews can't keep from acting out their frustration sometimes.