The loss of the EIR base was due to the loss of MAN. After they lost MAN the profitability fell to a break even and the left SNN. Stupid mistake by the management I think we will all agree.
Also keep in mind, 1 month of Prague was just chopped in Cork due to the DAA refusing to advertise it to a reasonable standard. CSA has went ahead and advertised it by themselves with the help of Prague airport.
Anyway in far better news, Aer Lingus will soon return an A320 to the Heathrow route in Shannon.