If that's your opinion then it is what it is.
I honestly think that what you just said is an extremely wrong view of how the manga has developed Naruto's bonds with the characters, but you being wrong is my own personal opinion as well. I guess we just don't see things the same way.
To each their own interpretation, only Kishi knows for sure.
I actually view this as one of my opinions with most evidence (or truthfully, lack of evidence for NS special bond) to back it up. Obviously you are right about Kishi being the final judge of that. Here's my take, if you care:
I have never seen Sakura being held in any special place above all others
for Naruto in this manga. She is a very important bond and a close friend
, but so are Iruka, Kakashi, Tsunade, Shikamaru, Neji, the Konoha rookies, Hinata, Gaara... It is Sasuke, and Sasuke alone, who takes the number one place of importantance for Naruto. Jiraiya was another one with who Naruto had very special bond and the one that comes closest taking the 1# spot from Sasuke. In what chapter and in what page is Sakura in any way elevated above others in importance? What is the context of those moments? Where are they? I'm sure there are possibly few moments that I can't recall now. Links?
Let me give a few examples. The movie manga chapter from this summer. Naruto and Sakura barely interact. Naruto spends moments remembering Sasuke. Kishi takes, once again, the opportunity to show SasuNaru bond. Hell, when Sasuke tries to kill Sakura, Naruto is like a father scolding his child who has eaten too many cookies before dinner. "Naughty boy, you can't do that". Little interaction with Sakura. Then it becomes all about Sasuke, Sakura and her suffering forgotten by Naruto. Sasuke is that special to Naruto that he can brush aside several other characters (Gaara, Raikage, Kakashi, Sakura) and stop to remember him even when the plot has nothing to do with Sasuke. Naruto and Sakura can't even talk to each other about their issues. Naruto told Jiraiya everything about himself and his life. To Sakura, well, Naruto can't even honestly speak about his feelings for her, not to mention that he kept secrets from her during the summit arc. Sakura, likewise, during that arc lied to Naruto. They both know about Naruto's feelings for her but are not communicating about them in any way. Naruto and Sasuke, in contrast, are portrayed with this inner understanding about each other, like there isn't even need for words between them. Naruto and Sakura's lack of communication is not like this, their lack of being honest with each other lead to the disaster of Sakura's confession and the aftermath.
I told you earlier that I didn't think that Naruto had an epic love story aside from platonic SasuNaru. That is how I feel, and it's because moments like I described above. NS is not in any way portrayed special, IMO. You NS shippers keep talking about NS special bond, but I just don't see it.
Naruto is a good and loyal boy and has been supporting friend and is in love with Sakura. He would be very tempting opportunity for her.
Bringing Sasuke back doesn't mean he gives up, he made the promise because he wants to make her happy. Naruto wants Sakura's love but until that happens he wants to do what makes her happy, and that meant promising to bring Sasuke.
That meant accepting the fact that Sakura was in love with someone else. What else Naruto could have done? "Sorry, guys, but I just realized: now that Sasuke is out of the way, my chances of getting into Sakura's pants look better than ever! Forget that damn Sasimo or whatever his name was, we are fine here!"
Naruto's selfless sacrifice was to give up something that was never his in the first place.