Have you watched the last episode? They literally spell it out... even if it wasn't clear before, now I think it is. Which to me is a good plot. Keep people guessing then give them awnsersThey did not show any loyalty. He pledged allegiance to save his bacon. He made this clear before he left town. They showed only him doing for himself. This is the "casual fan," take, which is who the post was directed to. They did not show his "master" bid him to flood the town. They didn't even show him steal the key and sneak back and why would he flood the town knowing his "master" would be in direct danger? They didn't show that. They didn't show him have ANY reason for going back to the tower.
Who "they?" I remember now the line about them digging the tunnels. I'll have to rewatch that bit to see what I missed. As of now, they did not show why this creates anything other than steam. The point of OBC's post. It is not clear to me the importance of Morder, why this created it r why this action created it. hell, I don't even know what Mordor is. Just a city for the "bad guys?" Why does it have to be steamy and firey?
They showed him created when the leaf hits the heat. They did not show him snoozing then get goned on the head by a leaf.