It doesn't get away from the "where to from here?" situation which is looking pretty awful at the moment. The shareholders should provide a solution or we look at liquidation/acquisition - end of story. De-privatisation is not an option nor is subsidy - as that would be illegal and anti-competitive.
If an increase in cost is introduced that is acceptable to all parties that would be an equally valid solution BUT it would appear that NATS needs huge increases to survive and service users are not willing to pay above the odds willy nilly to bail out a "balls up" situation.