I think the point is Ryanair is really muscling in on easyJet's core assets at the moment. Who would have thought they would have been operating from Amsterdam for example. You could add Hamburg and Cologne to that list, Lisbon... even Luton to Copenhagen - up to 8 daily from nothing shows that neither want to back down on that one.
The reality is that those old secondary airports Ryanair used to be renowned for are more origin than destination (Malpensa & Bergamo, Fiumicino & Ciampino, Barcelona/Gerona/Reus) are all good examples of that.
The fight is only just starting.