You are cherry picking from the reviews.
Consumer report says:
"Excellent snow traction and stopping on ice without much compromise to handling and traction on cleared roads."
Review 1: "Takes my Audi S3 through to November to April, mostly cold and wet roads but with regular snow covered and hilly terrain. An all rounder except the most extreme unplowed circumstances."
Review 2: "Snow traction simply OK.
I drive a 2012 Volkswagen Golf TDI, an economy car with a relatively sporty demeanor, and expected lots of stick when the snow fell. Instead, I watch helplessly as the Hyundai Accent next to me--shod with OEM all-season tires likely a third of the price of the Pilot Alpin 4s--pull away from me at a stop light. Lateral grip on snowy surfaces isn't much better, with lift-throttle oversteer particularly pronounced--at least in the Golf I drive."
Review 3: "Very good dry and wet
These are generally great. They handle in the dry winter nearly as well as my ultra high performance summers do in the warm weather. Wet is great as well. A couple of inches of snow is fine with these. Deep snow and ice are still a challenge, though that is probably as much the effect of my rear wheel drive car with low is clearance as the tries."
