B&B is a bit OTT but he does make some good points
Large "traditional" airlines are under lots of pressure and its hard to see it getting any easier
fuel affects everyone, but legacy high cost structures impact the old boys worst - look at Qantas - 3 maintenance bases in the second highest cost country in the Asia Pacific region and maintenance costs 20% above their regional rivals.
Too many big airlines have gone bust in the lat 30 years to have any confidence that BA will be around forever
All we can do is to stay current, stay flexible and plan for the worst