That's an important caveat, given how the danger was apparently greatly exaggerated.

If you've been told that the system will

> somehow suck all of the oxygen out, and if we were still inside we'd be dead

then what are you going to do in a real fire situation, when you're not in imminent danger but your escape route is blocked by flames? Better to brave the fire (or jump out a window) than submit to death by suffocation...