So if this is just about barely covering clothing what's the age limit? My 10 year old is a Human Radiator and wears tiny shorts and tops to fly in occasionally popping on a hoody to land.
Or Mr and Mrs Average flying in their sweaters but quite small shorts which >horror < probably leave a nice sweat film on the seat.
I agree that it sounds like she should have put a layer on when it became evident the flight could be delayed.
But let's not pretend it's all about rubbing against another persons skin or sitting on another persons secretions. She wasn't trying to enter the Sistene Chapel FGS.
Most of the outrage on here is because she's a woman and she shout cover up I case somebody nearly sees a bit of boob.