The Nats statement is: "We're working with Southampton Airport to try to ensure this does not happen again."
What "this" means could be a variety of things - it may even be a really, really bad corporate communications bod! The article seems to be hell-bent against Nats right from the start and isn't balanced journalism at all. The full-picture hasn't been painted and all we have is some blurry suggestions pathetically slapped together by some journo like a Claude Monet painting!