Quote - "Whichever way you look at it, ADP is a tax which is paid by the pax to the government via the airline. It is not something the airline pays to the government out of its own coffers. Even if payment of outstanding ADP is delayed until 2023 it doesn’t change the underlying cause that the current Flybe model doesn’t work."
This seems to miss out an important fact that homunculus has picked up on - without this tax the total fare reduces and the ticket becomes more attractive. That's where the clear benefit lay.