I’ve never seen any claim that winter-rated all-seasons work as well as winter tires (but there’s certainly a lack of making it clear how they’re different and when to use each).
Each manufacturer lists both, and lists the differences (including things like temperature ratings, traction ratings, etc).
It’s pretty clear from the traction ratings alone that a given brand of winter-rated all-seasons are quite different than their winter tire.
I’ve never seen any claim that winter-rated all-seasons work as well as winter tires (but there’s certainly a lack of making it clear how they’re different and when to use each).
Each manufacturer lists both, and lists the differences (including things like temperature ratings, traction ratings, etc).
It’s pretty clear from the traction ratings alone that a given brand of winter-rated all-seasons are quite different than their winter tire.
Maybe they don’t directly claim it, but they are counting on people assuming based off the name I’m sure.