RyanAir have a distinct advantage in that they have, more aircraft and crews in non affected airports, to draw on. Also the pax do not have the same level of service expectation that the Aer Lingus customers have.
You really want to go with that ?
Level of expectation of service is you get from Airport A to Airport B in reasonable time ................for overwhelming majority of passengers it doesn't get any more complicated than that.
We may kid ourselves that its Boeing or Airbus, Flag carrier v Other but passengers have simple idea..........get them where they want to go with as little hassle as possibe.