And this feature is relatively new, I think they started rolling it out only a few months ago. I'm sure configuration options will pop up.
1: https://en.wikipedia.org/wiki/List_of_languages_by_total_num... and assuming the videos in a language is ~proportional to L1+L2 speakers . That's a simplifying assumption, because I would guess English is more highly represented. Because people likely make more videos in English because there's a bigger audience for it. If only there was a way to allow more non-English speakers to be able to be understood/gain traction....