What a load of BS. Pure ignorance.
here an american airlines 737 takes off with some snow /slush on the wings/airframe
call them all ignorant and go by train- we will respect your decision.
like said , not pretty but not such a brainer as long its just loose snow . its a good idea to at least check by hand if not solid ice is under the snow, in this case of course de-ice.
the rest is a discussion for disgusted chairman experts and balcony spectators
cheers gents !