Yes, this interpreter probably meant well but his stunt could've backfired on him. If interpreters don't stick to conveying the message in its purest original form but start adding their own touch to spice things up then things could get ugly in a hurry. It's one thing when there are misunderstandings between individuals but quite another when countries and governments can't get along because as they say, things get lost in translation,
Simple language misinterpretations cause rifts among nations. Although Carter's joke was simple and seemingly inconsequential, changing a word or phrase, even without meaning to can cause stress in the relationship. It is the same as a misunderstanding between any two people. Misquotations and misinterpretations can cause a great deal of harm because of misunderstand.
One must be careful with what he says when speaking to an audience in a foreign language through an interpreter. Cultures have different attitudes when it comes to humor. Sometimes a joke may not translate into another language like the speaker was expecting. This can cause a rift among different cultures and languages. Therefore, yes, simple language misinterpretations can cause problems between nations.
The foundation of the world itself doesn't divide people even though there are 7 continents with oceans stretching all across the Earth. Pride, hatred, misdirected jealousy, envy, scorn, lies, and deceitfulness divide the world not language misinterpretations. PEOPLE DIVIDE THE WORLD with their own RATIONALE, CORRUPT POLITICS, RACISM, ROAD RAGE, ONLINE TROLLING TO CAUSE DISHARMONY, SOCIETAL CLASSES, PREJUDICE, EVIL EMPLOYERS, AND UNETHICAL DRIVEN CORPORATIONS.