Memmingen was never a year-round route and never operated in the winter, so I've no idea where you pulled that out of.
Confirmation of Beauvais sacking hit the newspapers today, unusually takes over a week to happen, but only 3 days in this case!
http://clareherald.com/2016/06/ryana...e-again-21121/
Edit: Also to mention, Cityjet made it work until LHR came back, Aer Lingus attempted it with a departure time of 16:00 and Ryanair had it profitable at 2x daily before, yet this time it was marginal due to its horrible days.
If an airline actually wants to make it work, it can work. Shannon's problem is mainly around the fact that nobody wants to threaten their DUB service. Will a 2x weekly Paris service on TUE and SAT at 11am affect DUB? No. Will a daily Paris leaving at 7am affect DUB?Yes.