'In which geographic region are you currently located?' is really quite a different question from 'in which geographic location is the place or places that you consider "home" in some significant way?' Plus, that second one would need to be a tickybox question rather than radioboxes. For me, anyway. (Also, place or places that I consider home may still not indicate nationality, plus recall that a person may have more than one nationality.)

The one thing that bugged me in this one is actually something that I need to stop being bugged by, which is having to tick 'Oceania' rather than 'Australia'.