Your link states that "Co-payments " have stopped.
My idea of co-payments, which may be wrong, is those "extra bits" that you have to pay on top of the free main treatment and that one can still claim all the fees from the NHS except, the co-payments, which may be minimal.
Nevertheless, I wait to see all the evidence. If there is any fraud, it is likely a mere drop in the ocean compared to the £20 billion black hole in the NHS funding, and would not impact on services.