Ribble
How are you so sure that Aer Lingus, Thomas Cook and the likes are not also receiving incentives? Contracts are re-negotiated all the time.
Thomas Cook in particular has increased services with new routes and more based aircraft, so seem to be happy with the deal they have.
The fact is, There seems to be an almost giddy sense of hope that Ryanair and Easyjet expansion at MAN will lead to other MAN operators moving flights to LPL from some people.
The fact that there has been very little, if any, retraction of flights from MAN, quite the opposite actually, with increases from Jet2, Thomas Cook, Aer Lingus, Thomson and so on, suggests there seems to be enough room for all at this stage.