What's attracting airlines to the city are the incentive packages being offered. £525k in the case of KLM, for a route that was already being operated from BFS. What's attracting FR, if that is where they end up, I don't know, or perhaps the INI, DUP, TI have come up with a support package for Mr A again.
I suppose it helps when the CEO of the airport is also the chairperson of Tourism Ireland, who can put forward support for such routes.
Typical DUP, putting their mate in to suit themselves in Holywood (Despite the fact that it is hugely benfecial to the RoI as a neighbouring nation.)
Super stuff.