Unless I missed it I didn't see much in that test in regards to snow except mention of siping and such
The reason I ask is I've been running the Duratracs for three years now, and am due for a new set this winter. They are the first set of tires I've owned that have been snowflake winter rated and that was a huge selling point for me as snow performance is probably where I see most of my adverse conditions. on road or dirt.
I purchased after reading reviews and have been extremely happy. Honestly I've been pleasantly surprised by what I could get away with. BUT, they are the only winter tire I've ever run. The Coopers have never really been on my radar, but if your opinion is they are both equal in snow, it's something for me to think about