It’s horrible, but I think it’s just one of those bizarre accidents. People get killed by having their acetone nail polish remover catch fire from something you wouldn’t even think would be hot enough; some of these substances are much more volatile than you’d expect, and most of us are just lucky!
I agree...there can be alot of flammable items that a stylist would be carting around with. Nail polish remover; the powders for acrylic nails; polish; hair gel; hair spray, etc.
And if she threw her smocks in her car...well, fuel.