I believe CWL (2002) opened as a base before MME (2003). I know WW broke their contract with MME but not sure it had anything to do with CWL.
LCCs can make money at CWL in the summer months but lose a packet in the Winter (typically the summer profits don’t cover the winter losses and provide a return). I remember my previous director saying he wished he could just close the airline (and costs) for 5 months of the year and he would have a great business !! Haha - obviously most of the aircraft (save a few winter leases), crew and employees have to do something.........