I would bet the vast majority of people do this. If they didn't, or preferred something else, it wouldn't be presented in the UI this way.

I disagree, because there is no 'easy' way to know what the most 'significant' changes are. I can think of a few heuristics (e.g. most changed, earliest changed, as well as prioritizing things like header files for C and friends), but nothing that would work universally or particularly well.