You'll notice that the testing was done in a dry, desert environment, and most of the tires the KO2 was up against have since been replaced by newer and improved models from the other manufacturers.

The KO2 only has potentially better puncture resistance in sizes which come with 3-ply sidewalls. The 265/70R 17 C which is so popular on 5th gens, has a 2-ply sidewall.

The OP lives where it's frequently wet. Wet traction, ice, and hard-packed snow are conditions where the KO2 lacks. It has a harder rubber compound. It does okay in deep snow despite this harder rubber compound due to it's more open tread elements.

Here's the rest of the test results from the Tire Rack test you linked, where the KO2 is compared to current models from some competitors:

https://www.tirerack.com/tires/tests...y.jsp?ttid=249

https://www.tirerack.com/tires/tests...t.jsp?ttid=249