Unless you live in Norway, Alaska or a similar location with snow/ice on the road nearly 100% of the time, I would venture to say there are several days a month that the Eos can be driven during the winter.
In fact, I would recommend it as it's a lot easier that putting a car in "storage mode". Before I got my Eos, I had a '95 Mustang convertible and it "sat" in the garage most of the winter, mostly because it just wasn't that comfortable to drive. Sometimes it would sit there for a month or more and then when I would take it out, the flat spots on the tires would go "clippty clop" for maybe 10 miles or so. Annoying.