Believe it or not that KLM is a very big player at Cardiff and i can't believe that the airport would want to loose them, especially with the likes of AF and LH deciding on BRS.
Cardiff is supposed to be a priority station on the KLM network but im not sure their operations are fully aware of this as they cancelled a flight and downgraded the other on one day.
The person which was in charge of ground operations was at Cardiff that day and they were not too impressed, and clearly stated that Cardiff is a priority station and it shouldn't happen.
The major problem with KLM is that they operate an old fleet where there are limited spares available, but hopefully the fleet renewal for either the F-100 or F-70's will come sooner rather than later.
Whether it's due to the arival of LH and AF at BRS or other reason i am however starting to be worried about the passenger levels, as majority flights are not 3/4 full when on a F-100.