That could be true if we think of it with the multiverse theory... but then, it would be very hard for the exact same thing to happen in another language, because it means that the first ponies or species whould have had to learn another language than english from the beggining of their existence to understand each other, and that would change these universes farrrr too much for the exact same thing to happen in another language... I consider that by imagining the show, the creators "created " this multiverse with one specific language to the ponies, english. Yeah, I love to think that every show/movie/series already happened in a separate multiverse each, and that the creators just thought of the exact same thing... I know I'm weird :3