But your missing the point.
No No No... You are missing the point !
Waterford / any other airport can glady charge this fee (albeit still a con), but...IT SHOULD BE IN WITH THE TICKET WHEN BOUGHT !
Airports should charge airlines, and airlines re-coup the fee by increasing fares that passengers pay from that Airport.
Obviously they have a short fall in funds for development, therefore I see two choices....
1) Don't develop
2) Increase Landing Fees
Charging customers directly is subsidising cheaper landing fees