Most people in southern European countries like it dubbed. Doesn't mean that they shouldn't be given the option (specially if a dubbed version doesn't exist and is the only way to see the content at all).

From a technical point of view is a trivial fix. From a commercial point of view? Well, either selling content in a different language is profitable, in which case negotiating the licenses is worthwhile, or it isn't very profitable, in which case "license to distribute in Japanese with subtitles inside Italy" should not be a very expensive right to acquire.