EI cabin crew need to pick a better time to strike. You need to know that this is a 'Low' season so there are plenty of spare aircraft about available for AOG work. The situation is not the same in June / Jul
MON, Jet2 etc have plenty of spare capacity and are also using the flights for line training of pilots. You will find that MON and Jet2 have pay to fly mugs operating the flights and MON, Jet2 are double dipping - cash from Aer Lingus and cash from the pay-to-fly pilots as well
Jet2 sent 7 aircrtaft to the BA strike because it was low season. They are also charging their new pilots for training
Wake up - only go on strike in peak season!