This "stupid" check is needed as the Ryanair boarding procedure is very quick and can be open to error. Cabin crew checking boarding cards is the last chance to check the right person is boarding the right flight. It has reduced the amount of boarding delays system wide.
Memmingen - it was only a matter of time before a move was made there. I would expect a base within 12 to 18 months.
EDI also looks to be growing to a 5th A/C this summer, although not released yet. Obviously a strong seller for FR.