imo the Hinata being the heroine was SP's ideas, and since EVERYONE IS kittening AWARE OF THAT, they told Kishimoto to say those things like it was his ideas.
Kishi is SP's puppet now, he has to clean all the kitten they have done.
I'm so angry. What kinda of a writer would say something like that for his own character?? don't he feel a little attached to her after all those years? he's being too unfair to Sakura. He hates her. He's pretty much saying " I gave up on Sakura because she's terrible, here have Hinata as the heroine because she's more likeable"