Good explanation in a post below the article.
"I’m an airline pilot that flew out of Chicago during this storm. What happened here was you have a contaminated runway, snow and ice with braking action advisories in effect, plus a strong gusty crosswind. After touchdown, the mostly likely cause was as the plane slowed and the rudder loses effectiveness you rely more on nose wheelsteering, but since the runway is slippery and you have a strong crosswind blowing on the tail, the plane will start to weather vane. The wind pushes the tail to the right and the nose goes left with the end result you see here. Since they had limited nose wheel steering due to the snow and ice covered runway you can’t overcome the wind pushing the tail around. I don’t want to second guess this crews decision, but I would think very hard about landing on a contaminated runway with a gusty strong crosswind. However, there were planes that landed ahead of this one with minimal issues."