ORK and SNN should have both been cut loose at the same time but should have kept their debt. As it is now, with DUB and ORK taking SNN's debt, and DUB gearing up for parallel runway, taking ORK'S debt on would potentially hold DUB, and consequently the entire industry in Ireland back overall. Can ORK survive independently with it's debt? I doubt it.
Somebody has to take the debt on for ORK to go solo, and whoever gets it will rightly feel screwed. Letting Shannon go debt free was foolish from DUB and ORK's point of view. As usual, everyone else has to foot their bill.