Surely you're conflating capacity growth with profitability, too much capacity isn't what a highly seasonal operation like DUB-US needs, hence the B757s being introduced.
Seasonal yes but the B752 are largely for SNN, yes there is one for YYZ but had they A332 they could deploy it as they had planned previously. IAD is the only real route with is B752 suitable year round and will likely happen in 2017 when another B752 is sourced in additional to more A333's,
Surely you're conflating capacity growth with profitability, too much capacity isn't what a highly seasonal operation like DUB-US needs, hence the B757s being introduced.
Also, I think it's fair to say that just because the Irish Gov has no direct stake in Aer Lingus, it's a long way from encouraging a Middle Eastern airline to aggresivley target an Irish based company, the de facto flag carrier for want of a better expression.
Wasn't there a fuss at the time when Airbus tweaked the A350 design to the XWB that this was a little too capable for what EI was after?
Seasonal yes however year on year the seasonality is dropping with a lot of growth in Nov-Dec again this year building from 2015 and significant increase in Jan-Mar period in 2016, + around 30 weekly flights.