Agree, regardless what the cockpit crew was doing, the cabin crew are trained to begin an evac under such conditions. Half the airplane engulfed in fire on a plane fully loaded with fuel is not a situation where you want to sit on your hands.
Also surprised none of the SLF extracted themselves. Especially in SE Asia and other "interesting" locations, I don't know about you, but I'm a bit more on my toes while riding in the back. Was a time that SIA, like CPA, was a pretty safe bet. But I think those days are long gone. Just a matter of time these days.
Tired, overworked and underexperienced crews is the biggest threat today. I've seen that lead to some really interesting judgement calls here at CPA, why should SIA be any different?