Kishimoto can say whatever he wants in interviews, but his artwork says otherwise. There is mistakes and then there is obvious tellings.
Visualization is the key here and the visuals do not suggest anything remotely positive happening as of late. In fact, it shows the opposite. Naruto cannot be THAT busy seeing how everyone is at peace. What could he possibly be doing to take up THAT much time? Not even the other Kage were THAT busy and they were around during times of war.
And this is why i still believe that we are still not seeing the whole picture.
There's this feeling in the back of my brain. Call it spidey sense or whatever. But something just doesnt add up.