How come he listened to his wife about Kushina but not about Narusaku (which was, let's admit it, far more integral to the story?) She's a "strong" character after all. I'm guessing it's because by the time she found out, it was too late -- the storyboards were planned, The Last movie was in production.. Coupled with the fact he cares way too much about popularity and he has no spine/is wishy washy.. Welp, that's how we got that ending, pretty much.
At least we now know that there was at least a couple people in Kishimoto's circle that knew what should have happened. What's the moral of the story? Always listen to your wife.
(Also, how lame of him to try to convince his wife she was the model for Hinata. She sounds nothing like her, what a jerk, and a liar. I won't even comment about how he decided on NH, it's all a bunch of kitten and he knows it.)