Much as I would rather fly from Cork, I have taken the Aircoach four times over the winter to get a DUB-BCN flight. On the inward leg I go BCN-LHR-ORK but the return times are not convenient, hence the trek to DUB. At least in a couple of weeks the direct BCN-ORK is back.
You would have to think that there is a market for a few ORK-DUB flights on EI to connect to other EI flights from DUB. I would happily pay the extra for the convenience.