Does it means "all men must die" or "Valar must die"?
I hated these words when I read them first, not just because I was searching info about the Valar, but there is something not good about this.
I agree that it is only play, only few secret words for Game of thrones, whisper for people in secrecy to recognise each other... but even then it is whispering about their intentions, it speaks about what they stand for.
I'm not sure, who, but someone indeed stands against the Valar. (but I do have my guess) I only hope this won't turn into real thing, real war, this battlecry might yet sound loud. I don't think that Valar would lose, but I don't take this lightly. It isn't coincidence...
Why else would not be there any official film production of Silmarilion tales?