FR have a frequent service DUB/STN, so what if they double it, there are enough people on that route who would prefer the EZY product over FR. If they started with 3 returns per day at times to suit the London based passenger, they will get market share, and then grow the route to suit. FR haven't exactly wiped out EZY at LPL or STN. It would be good for EZY, DUB and the traveller.
Airports should have an input into their route structures, EZY could negotiate an array of routes working with DUB, with Dublin not permitting the kind of tactics whereby an airline purposely runs routes at a loss to fight off a competitor. It would be in the interests of the airport and the customer.