Surely the publication's location and readership are the salient factors, and not the article's topic? Or should the article be in Italian because it is about Italy?
Now there's a readable headline.
Of course, TFA lists the Celsius measurement in the first sentence, but who reads articles these days?
It’s only, as you say, “shit”, if you don’t like that America uses Fahrenheit. Or if you’re looking for a reason to “shit” on American press for using the Fahrenheit scale.