I'm sorry, but this is just stupid. Sasuke is my favourite character, but you'd have to be an idiot to say he's stronger than Adult Naruto, even with Rin'negan mastery.
What does Rin'negan mastery do for him in a fight against Naruto?
Mastery of the Six Paths? Only Deva, Preta and Outer Path are even useful against Naruto, and Outer Path is situational because he won't have the Bijuu's beside him to take chakra this time.
Naruto laughs off Chibaku Tensei with superior destructive capability and Preta will only be used in CQC, seeing as how majority of the fight will be between their chakra avatars.
Limbo (which I think Sasuke does have)? Naruto senses and his clones handles just as easily as he handled Madara's Limbo clones.
Amenotejikara is the only remotely threatening ability and Naruto can still sense Sasuke and it won't end Naruto given his durability.
Indra's Arrow won't stalemate this time because Naruto has Full Kurama, meaning he can absorb more Nature energy and overpower Indra's Arrow.
Now what does that leave us with? If you want to scale anything, you'd also have to scale that Naruto's Ashura Avatar with Half Kurama was equal to Sasuke's Bijuu enhanced PS. If you take away the Bijuu PS, Naruto's avatar nukes Sasuke's PS.
And relatively speaking, Sasuke mastering the Rin'negan is like Naruto mastering the Bijuu's KKG and Creation of All Things via RSM. So if you want to say one mastered, then the other obviously will.
Sasuke isn't beating a Full Kurama Rikudou Naruto when he could only stalemate a Half Kurama Naruto who had no access to the Bijuu besides Kurama and he himself had the Bijuu; Rin'negan mastery doesn't change that.