"Localization sells better" is downstream of having a properly translated work. Deliberately not translating "jutsu" or "rasengan" only works because Naruto is

"Localization sells better" is downstream of having a properly translated work. Deliberately not translating "jutsu" or "rasengan" only works because Naruto is a show about ninjas... debatably. If we translated everything in Naruto then everyone would realize that it's actually a show about ramen.