You could even argue that this will increase revenue for the likes of Ryanair.
They will inevitably pass on the increased costs to pax. Taxes are not refunded by Ryanair if pax do not fly. More tax on the ticket price equals more money not refunded.
I am sure that this is already a nice little earner for Ryanair, it will become even more of an earner.
MOL is , therefore, correct. It is "horse ****" and will certainly do nothing to deter the low cost carriers.