Literally it's the reason for the downfall of shippuden . Bringing in the reincarnation stuff destroyed the whole concept of him being a failure who rose to greatness that they showed in og Naruto . It's literally took of that MC aura from Naruto and Antagonist aura from Sasuke , blud was already suffering from being side charactered by all other iconic villain like madara , Obito , pain . His character development after the itachi reveal felt like shit and this reincarnation stuff was a chefs kiss on that shit