Yeah, this is a really nice feature; on the couple of rare occasions where an update completely borked things I was able to go from unbootable to everything back up and running in half an hour.
I don’t know, I thought it was kind of fun that they mixed things up for a change and had the protagonist be the villain and the central plot be about his triumph over the antagonists who are the heroes; the movie ending with him relaxing and enjoying the sunset now that his great work was over and so he could retire and put down his burdens was a really nice touch.
For day-to-day purposes, if you are used to Fahrenheit but not Celsius or vice versa, and all you want to do is get a rough sense of how warm or cold it is outside without having to do arithmetic involving fractions in your head, then remember that there are two temperatures in Celsius that are roughly the same in Fahrenheit but with their digits transposed: 16° C ~ 61° F, and 28° C ~ 82° F. You can then roughly interpolate/extrapolate by about 2° F for every 1° C.