[DominicCobb said:]
What I posted was not a “retcon” I just made up. That’s what was intended when the film was made.
But it wasn’t in the film, so it’s not part of the story. It was just an idea that was (eventually) discarded. The story ultimately went in another direction. It may have been possible to go with that idea at one point in time, but now it’s not, because it contradicts the final version of the narrative that was put out.
I’m not sure if I’m just arguing semantics at this point, but I couldn’t get the intent of the person who made that initial post.
I think it was just a tangent that didn’t have anything to do with the ultimate question of “does Tarkin know Palpatine is a Sith” to which I would say no.