I don't remember if Kishimoto said it specifically. I believe he must have since she got super pissed at him over the ending and he tried to comfort her by saying she was like Hinata, but she didn't believe him.
I do remember that even other people (I don't remember if it was Jump staff or who) but they said his wife looked like Sakura.
Well, he must have told her something else at first. Apparently she loved Sakura and thought NS would happen very early on. So she sat with those thoughts for YEARS. Both she and Naruto's VA hated the pairings and ending. Wonder how many others in the cast also did.
I swear, people who hate Sakura saying "she's useless" or "she's abusive to Naruto" or whatever are getting more and more desperate to "prove" how their blind hate is right. They're not even pretending to give actual legit criticism anymore
Comedy violence doesn't count because it's usually exaggerated. Sakura never hit Naruto in a non-comedic situation.
Real abuse is what Sasuke did to her. He also neglects the kitten out of her which can be seen as a form of emotional abuse.