How stupid can people really get? Imagine Naruto throws 100 of those RS's, how will it change anything when Sasuke only uses one Arrow? Simple answer, it won't. Why? Because the Susano arrow still detonates the first one it hits, which in turn creates a domino effect, where the explosion then explodes all the other RS. And then the fight boils down to whomever has a lower level of durability. Guess what, Naruto's new cloak's durability hasn't been tested as has Sasuke's, so feat-wise, Naruto is his own demise, portrayal wise they both die.