That is a completely spurious argument. The Manual of Style says the page should be at the most common name used in English. The above are the most common names in English, not their translations. East Timor is the most common name by a mile over its translation. The language is irrelevant. The only issue is 'what name do English speakers use? They also used Kaiser but not Konig, so we refer to the German Kaiser, but the King of Prussia. They use Nicholas II for the last tsar, but Wilhelm II for the last Kaiser. It is what is used, not what language is used, that is relevant.   
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