[Perfectlap]

^ nobody said you did.

while you may be an experienced driver, most are not. The results you've had with an all season tire over substantial snow rely heavily on your competency as a driver. Driving over snow with the wrong tread pattern is a skill set most simply do not have.
All season tires, on a RWD car, in more than 2" of snow and plenty of dry ice, under hands of only average driving ability are a bad winter mix.