Chip, you wear that hat with the brim, which should have the same affect as the helmet in keeping melting snow from running down into the goggles. Like me, I suspect melting snow is not your greatest source of moisture entering the goggles...
The things that work best for me is sealing the bottom of the goggles against whatever is covering my nose and cheeks against my skin so my breath or evaporation doesn't up up. Then, when working hard, I try to exhale through my mouth while aiming down.
The article is definitely onto something with "don't overdress". While riding in winter, I am comfortable, but stopping at a light can cause me to start sweating and will often fog my sunglasses immediately, so it is about not sweating and/or maximal dry airflow on the inside of the goggles.
Tim