As a captain at another carrier, I can tell you first hand that I would have evacuated as soon as I heard there was a fire. That is something that should never be messed around with. They were extremely lucky that no one was injured or killed. If you want any proof of how fast a fire can consume an airplane, look up the video of the China Airlines that caught on fire in Naha. It will scare you at how fast it can go bad. I personally am disgusted that they did not evacuate.
