I wear a shirt with a buttoned top pocket on international flights - for my passport. The rest of my baggage can burn in an emergency evacuation.
If we were really serious about evacuation:
- no duty free shopping.
- no flip flops or high heeled shoes.
- obese and frail people away from exits.
QF did the right thing by moving that obese man mountain from the exit row - he would have jammed the emergency exit like a cork in a bottle.