Would be happy to pay those rates, but I am flying Indian subcontinent to Europe which is not in the table. It's not in the table because Etihad typically does not sell tickets on that itinerary without luggage, so it's a situation that usually does not exist.
It may be so unusual that they don't even notice at the airport or just waive my fees, but it's a huge risk if they decide to charge 640 USD.