PLS no defending Sakura!
She knew Naruto loves her...
She knew how much her feelings for Sasuke hurt Naruto...
...and in the end she still just wants go with Sasuke leaving Naruto alone in the village. Nothing anybody says can justify her actions in this last chapter.
Problem here is that if you watch shippuden ok. and you check every freaking ark ok .
NS reunion, She seems attract physically to Naruto, and Naruto the same ok. She's glad he hasn't change too.
Rescue of the Kazekage : Worry about Naruto when she learn about the jinchuriki
Sasuke Reunion : Sai (who don't know kitten about emotion, notice she's protective of Naruto. Then we have the yamato scene.) Naruto feel extremely bad for hurting Sakura.
Immortal devastation : even if this arc is focus on Shikamaru and Asuma bond, we've got Sakura trying to help Naruto getting stronger by cooking him special soldier pill for him. Plus she's the one to heal his arm and to tell him to be more careful with that jutsu
Pain arc: She called in the sky Naruto appear (IN A STORY, normally that mean something)The hug and the thank you while Hinata watch with a smile on her face, showing it wouldn't have mean Hinata suicide if NS happen.
The 5 kage summit: Confession where even if it's not for the right reason, she blush before saying I love you to him. Even though her reason were wrong, her motive were to protect Naruto. Kishi state she was honest in that confession.
War : She heal naruto in 631, never deny to be Naruto girlfriend compare to part 1, and you've got that CPR Scene where I can't help to see a parallel there between Tsunade and dan. She was really worry promised that everything will be fine and that she won't let him die, no matter what happen. She decide during the war to protect Naruto dream.
So no, I won't blame Sakura or Naruto and I will defend them. The author has everything to make NS canon and legit. If the future in 700 were with NS, it would be still an asspull somehow because the couple pop out of no where but due to prior development, that would damage the story far less.
Those who state the bullsh*t argument that Sakura can be forced to love Naruto, it would have been true if it weren't of all the clue that said that she develop those feeling for him . Even in part 1, her inner laugh at Naruto antic (the real Sakura is like him). And when Sakura imagine what her dream guy would say to her, Naruto say word for word what her dream guy said. Which reinforce the Mina/Kushi parallel.
Because it's not just a parallel, you see that Sakura would have like the same thing as Kushina and it kind of happen.