Tom
For a very small city in the south of Ireland I would have said Cork airport is served quite well. You can hardly expect airlines to open loss making routes just to keep people happy. They are business's at the end of the day, if they thought new routes would make money then I'm sure you would already see them.
I really don't think there is any conspiracy against Cork airport, everybody would like to see more pax and more routes but if the demand is not there then what do you expect?