i think it was the unnecessary mention of the kyuubi that created an inconsistancy. from the casual way kakashi mentioned the kyuubi, and the lack of any real reaction from the 2 teams in the recent chapters lead us to believe that they have no idea what the kyuubi is or they might have prior knowledge of the kyuubi within naruto. however we know that it is forbidden to discuss the kyuubi, and the only reason sakura knew of it was because she was the 5th's student. there was no need to mention the kyuubi, all kakashi had to say was naruto is the target and any response of why would be quashed with a simple no time to explain excuse. much of the kyuubi was made during the garaa and naruto fight and everything that lead up to it, it just seems odd that it is something that no longer carries any weight. in terms of the kabuto and naruto conversation i suppose we will have to wait to see the reaction in the next chapter of the conversation.
telling tales of contorted confusion
claiming that it is the sound of reason
as they make prisioners; a whole nation