That's my point. It clearly doesn't look like a basic rinnegan and two characters have called it something different
Actually what Sasuke has isn't what Kaguya had, she just had a Sharingan, it had multiple rings because it was all focused in one eye rather than two like the Uchiha.
The Infinite Tsukuyomi, is a Tsukuyomi jutsu on a high level using the God Tree, and a Tsukuyomi jutsu stems from the Sharingan.
What Sasuke has is a Rinnegan with Tomoe, which makes me think the Sage merged the Sharingan and the Rinnegan into one doujutsu unlike Madara who has to use them separately.
I agree with the Sage not Madara so your only helping me prove my point...
The Sage called that eye a Sharingan so im going to go ahead and say the sage knows more about that eye than Madara so can we agree it's sharingan and it far above the Rinnagan Madara has???
No he didn't.
He called what Kaguya had a Sharingan, he never said what he was giving Sasuke was an advanced Sharingan. He also said he was giving Sasuke half of his power, maybe you don't realize this but the Sage doesn't have a Sharingan.
Kaguya's Sharingan was only different because it was all focused on one eye and her base abilities are far beyond anyone else in the manga.
The Sage gave Sasuke the Rinnegan and mixed it with his Sharingan.
Sasuke already had a Sharingan, why would the Sage give him something he already has, the multiple rings and extra tomoe on Kaguya's Sharingan were the result of only having one, its only stronger because she herself is stronger.