Board Thread:Theories and Speculation/@comment-34661853-20181111160651/@comment-32685487-20181111170240

Naruto did not get Sasuke, Madara, or Hagoromo's DNA. He only borrowed half of Hagoromo's chakra. If he actually had a flesh/dna implant Naruto would have awakened the Rinnegan, but since he did not have the DNA implanted he did not. Sasuke and Madara each had actual Hashirama DNA implanted into them.. they each awakened Rinnegan. I think that makes it clear enough.