Yes operating with DUB based a/c etc. Actually setting up another base is costly and enters into another realm of operations. Its a bigger chance for more problems to arise.
Suppose fantastic idea, during a recession and cost cutting measures im going to set up another base increase my daily operating and overall costs and over complicate my operation - thats good?
This works for EZY, RYR & BE because they have their costs right and business plans that suit. EI want to be business focused travellers with LCC prices with flexible tickets and prebooked papers blah blah blah
How to lose money in the industry? Copy the EI plan!