Who's being flippant? What other sensible choice is there? You need to divert for weather. Either you do, and avoid a verifiable dangerous situation, or you don't and trade not upsetting the Chinese for a potential danger to the aircraft and your passengers. Not really that difficult to make the decision is it? Again, what are they going to do, shoot you down? That will look good on the BBC won't it. It's about time that the worlds airlines start demanding some common sense from the Chinese authorities. Look at the photos of that 747 again, and then tell me that you won't divert around wx because they say 'cannot'.