Yeah, the angst is from the fact that it's December, and people want to see real snow during the holiday season, and it sucks to see it get squandered (assuming the last GFS ends up nailing the next 2 weeks).
And if SNE can't reasonably expect it, then who can? If you have to go all the way to Vermont or Maine to see reliable snow in December, that's going to unsettle a lot of people.
And as others have said, it's been happening for many years now.