Board Thread:Theories/@comment-26624146-20171216061504/@comment-27321453-20171217174037

Maybe Isayama just felt like making him that tall. Also, Pieck only saw roasted Armin, she wouldn't recognize him after he was healed.

I doubt Armin is even in Marley, since they wouldn't leave the Walls without a Titan. Even Marley decided to leave Beast and Cart Titans on the continent as deterrence when they sent the rest of the warriors to the island.