True.. Sasuke would've just used Sharingan lol... but if these items do come back into the picture there could be some relevance and possible weaknesses to them. It also makes sense for Sasuke to possess them considering the Totsuke is claimed to be the "perfect counter" to the Kusanagi.Eh, I have no opinion on Naruto Uzumaki. And to me Naruto earned his more than a simple 1 panel operation. He had to gain Kurama's trust and was the only human other than the Sage to do that- over the course of 16 years that's quite an achievement to me, not many people other than Naruto could actually have achieved Kurama's trust & KM mode.
I mainly just hate Totsuka & Yata Mirror as items themselves- why Kishi thought introducing things like this was a smart move i'll never know.