What I like about Celsius is that one unit of difference is just about on the cusp of detectable in everyday experience. A temp of 7 degrees feels just a little bit colder than a temp of 8 degrees, and 26 hotter than 25. It's a very relatable human scale of measurement. I doubt anyone could reliably tell the difference between 45 F and 46F, or 79 F and 78F.
And on the supertwattery front, personally I don't mind if the Express and its readers want to use Fahrenheit, Furlongs and Fathoms. It's just when they go on to argue that in order to protect their right to measure their house price inflation in Florins per Fortnight, we have to close all borders, stop speaking French and wave a flag in each hand while watching Last Night of the Proms.