Chesty,
You can be as ironic as you like, the simple point is NATS are providing the best service as possible when they decide to close an airspace due to safety reasons - just like grounding an A/C. If NATS had gone on strike for a few days I would be agreeing with you but they have not.
By making the difficult decision to close the airspace they have indeed provided you and I with a first class service of which they are now not being paid for.