I know there is no guarantees, but theres smart business decisions and not so smart ones. Im not guaranteeing a BHX service to either NOC or SNN. Im also not doubting the market at NOC. But there is clearly a larger market at Shannon.
No carrier has the Aircraft to start a service. The BHX service would have stayed if EI regional had not started a CFN-DUB service with the help of getting paid to do so.
Flybe are pursuing other ventures so they are intrested in neither Knock or Shannon.
Also, why give credit to Ryanair? It's really an operational issue and any airline would do the same if they could. FYI they operated one of knocks services from Shannon.