Here's the key takeaway from that article:
"But it’s quite a leap to go from the stratosphere to conditions at ground level, and Cohen, for example, argues that regardless of how impressive the stratospheric warming or polar vortex movement is, “No one is going to care until there is snow in people’s backyards.”"
Here is Judah Cohen's weekly blog from yesterday, which gets into this on a more technical level:
https://www.aer.com/science-research/climate-weather/arctic-oscillation/