The Tesla isn't just a "new car" - it's new technology. It doesn't have the years of accumulated wisdom and infrastructure that support normal new cars. The same way that you understand that cold weather means you have to let your car warm up before you can drive off, it will be common knowledge that electric vehicles lose a quarter or a half of their range in cold weather. This article will be completely obsolete in a year, but because the author failed to convey that point it will sit around people's minds for years.
This article will be completely obsolete in a year, but because the owner's manual failed to convey that point it will sit around people's minds for years.
Fixed above. Also, my impression from the article is that Tesla is telling people to derate the mileage estimate by more like 10%, not 25% or 50%.