The loss of the KLM would signal the end of MME as a commercial operation for sure but please let's not get carried away as the long protracted bmi pull out had such a detrimental effect on bookings and confidence that we could be in danger of creating a self fulfilling prophecy.
MME management would be wise to seek a sound bite from KLM management saying they had confidence in the airport ASAP (presuming they do of course)