Customers should play airline at its own game
The decision demonstrates an extreme lack of loyalty to regular customers. It is one more step on the road from a customer-focused business strategy to a short-term, cost-focused business model. If the airline wishes to throw away its hard-earned customer goodwill, then so be it.
I would encourage all Aer Lingus’s frequent customers to take the same approach to customer loyalty and choose a rival airline at every available opportunity and on every available route from all airports.