I really do not think so. Oil propaganda would support cars rather than be against it. I’m quite sure this is directed at the people who think EVs are a full solution.
Where I live it’s common to spread gravel on the snow to increase grip. And then, of course, it is expected that everyone has the appropriate shoes and bike tires to not slip.
And even when salt is used, cars need a lot more salt per person than other modes of transport does.