They are reporting correctly, though it may seem a bit confusing of you are in addition not used to driving a car during the winter no slippery conditions. At the other end of the scale is "summer conditions", meaning there is bare and dry asphalt even though the calendar is clearly showing a winter month. Contaminated runways are cleared, swept and sanded (often warm sand which melts in whatever ice/snow is remaining), and breaking action is measured by a grip tester, or by estimate where no grip tester exists. So anything other than "summer conditions" during the winter will usually have the "... on ice" at the end. Use whatever breaking action the give you for your performance calculations
They're telling you what is on the runway and how slippery it may or may not be.