Board Thread:Naruto Discussions/@comment-34436445-20180703141210/@comment-31099706-20180705013147

Elveonora wrote: The reason why no one in-universe comments on the tomoe in Sasuke's Rinnegan, is because they know it's his Sharingan as well as we should, sadly many of us don't get it. Um, why should they? The Rinnegen they seen so far was of the one with nothing in, and in this one, it posseses not three but six tomoes, so I think someone should have noted out the difference, since Sharingan and Rinnegen never mixed up before that event.

Kakashi noted out Naruto being different by just looking at him when he was in the six paths chakra mode, Naruto commented about Sasuke's EMS, the first time they met, Sasuke noted out Naruto's control over the nine tails when they met.

Sadly some of us don't get this but you should know that in universe characters will obviously not have as much intuition about everything as much as viewers do, they have to be curious over it, be shocked of the new detail they see for the first time in their life, especially when it's coming from one of the most important eye in their universe. And considering they were shocked of just the Rinnegen, not being impressed by the six tomoes inside it is not logical.