After all numerous UC flights, I think I have only ever had a couple of in-flight massage treatment. Would agree that this is limited marketing hype for the cost VS incurs. Creates more disappointment for pax; most of whom do not get chosen for a treatment than word of mouth hype.
The bar is one of the main attractions for many VS premium customers; less City types working on their laptops and more media/fashion/PR types who mingle and network.
In terms of job losses, there are always empty seats and disappoint pax at the UC lounge so some (not all) can be redeployed. They just will not get their overseas allowances and see various parts of the world.
Unless VS wants to put seats in where the bar is to generate revenue, the cost is minimal for the hype it provides.