True but not that simple. They would not be growing by over a million passengers next year at Stansted after the continued decline if MAG didn't give them an attractive reason to do so. And especially as aircraft will have to relocate from elsewhere because the new aircraft deliveries don't start until September 2014.
Ryanair to cut Stansted fares in drive to reach passenger targets | Irish Examiner
Announcing the deal with MAG at a London press conference, Mr O’Leary said charges were still “very high”.
He added: “We’ll be cutting some capacity at other airports for summer 2014 because there’s now incentive for us at Stansted to grow aggressively.
“Stansted’s already our biggest business but it’s about to get an awful lot bigger.”
Some other interesting quotes...
Mr O’Leary said it expected to grow passenger numbers by a million a year over the first seven years of the deal, but admitted that fares and margins will have to fall, and some services will have relocate from other airports.
Mr O’Leary also said Ryanair was working with the airport to help attract long-haul airlines.