I do wonder what % of passengers have Cork lost form East Waterford mainly the city. Google travel time between Waterford and Dublin Airport is 1h55m (would of taken at least 3h-3h-30m) before the M9 while its 1h54m to Cork Airport. With Newlands Cross upgrade removing the only traffic lights and soon the M7 is being increased from 4 to 6 lanes between N7 and M9 interchange which will ease congestion at peak times and Newlands cross along will knock a few more minutes off the time.
Losing catchment area and the ever grown very short season market at all airports outside Dublin is the problem.