I think I got what the difference is. We don't have your blizzards here, so we can't have feet of snow overnight, and then fine sunny dry weather with positive temperatures ensuring dry asphalt for the next month.
Instead, it can snow lightly for months, with only short breaks, so that each morning you have an inch or two of snow to brush from your car before you go (and the municipalities have to brush it away from the streets). And then any time and anywhere you go, you go on fresh snow or slush. It may be less than half-inch deep, but it's still enough to slide, and it's more often there than it's not.
This make the days when you don't need snow tires scarce here. BTW, when I bought my car it was January and the car was equipped with summer tires, and I went home just fine, and was driving around for a couple of days before I had it rebooted.
So I can even imagine myself saying, "I don't need snow tires," because I can go around without them. It's just that with them I need to go out of my way and do stuff I otherwise wouldn't to see if my traction control or ABS work, because normally I don't see them switching on whatever the weather is.
On the other hand, I usually reboot in the second half of October, i.e. well before the snow. And reboot back into summer tires mid-April, i.e. after the snow is completely gone and will hardly reoccur. So, I don't see a problem in using winter tires on dry asphalt, too. But that makes sure that I never participate actively in sports like car curling like that (note that the fire truck in the end of the vid is quite fine and doesn't slide anywhere while the road is obviously very slippery):
Or or car bobsleigh like that (which is btw exactly in conditions I described above as being usual here).
The last video is from WV (West Virginia?), and it is to the South-West from where you are, right?