Jhwa like(Jahveh or Jehovah) means god in Hebrew.
Since there are different ways to name God in the old testament Elhoim means also god, it is the plural form of El (which stays never alone but accompanied by some epithets,note some common names such as Emanuel, Daniel, etc)and it means the powerful, the strong.
So Jhwa Elhoim meth sounds like: god, the allmighty is dead
Anyways I think the question should be" Why did they choose a title in Hebrew?"
Maybe because in that way people could keep on asking themselves " but what does it mean?"