No Tom, Cork is not an 'of all places' part of the Ryanair network. You are misunderstanding the context. The context relates to seasonal bases/destinations. We typically consider Malaga, Alicante, Reus, Alghero, Faro when it comes to that line of thinking. This summer, Cork has been an exception and the first real and indeed formal example of how Ryanair's business model has taken on a new shape for all to see. It was self explanatory that southern european bases would be seasonal, however much will be the same for their northern counterparts. Gone are the days of year round flying, it has simply become cheaper to park up aircraft for nominal fees and have contract crew sitting idle.
Don't worry, Cork will have another frame or two next summer. It's by far an 'of all places' type of place.