Chances are the DUB hub would not have happened. Aer Lingus was a corrupt, government run airline based on parish pump politics. Aer Rianta was even worse.
It just happened Aer Lingus lost this corruption shortly after the end of the Shannon Stopover, so in essence it may have actually benefited the hub at DUB.
Anyway at this stage, its gone over 8 years and if you still have sour grips over it you really need another past time.