The main thing here is knowledge of the language. Given how widespread Arabic is (though perhaps not so much in the gaming ecosystem which is Rami's area), it makes sense to have someone on the team knowledgeable about the language while doing translations.
I encountered a (sort of) similar problem while rendering Devanagari text and wouldn't have realised If I couldn't read the text https://stackoverflow.com/questions/44254171/devanagari-text...