1: I'm not sure the logic of 1. "If something is made to mislead, it was credible enough to be endgame."...is logically false? You're telling a lie, hiding it to make it look pretty, so people think something that is not true. If you take it without looking at the other clues, you've fallen for it. A better detective would see the truth.
The misunderstanding of this and Red Herring is that neither have foundation. They're a pull with suggestion, which readers like yourself may certainly fall for. This sort of Stirring the pot interest certainly fueled what was shipping wars, but once the smoke screen was gone, what happened at the end made a lot of sense. The Last gives a translation of it, though, many just wave a hand at it in their pride.
2: The problem with 2, is since it's ultimately not supported, there aren't 600 chapters of it. I mean, your final number here is... zero, which makes the line after it flawed.
To support two, you need to illustrate how each NS moment (And you have to show 600 chapters of instances of it here, which let's be frank, there aren't six hundred chapters, though I'll assume it's a hyperbole for your sake), then you have to illustrate how the end doesn't make sense, because you'll find your jigsaw won't quite fit.
Man, didn't I say I was done discussing anything with you?
You are blatanly ignoring half of what I said and "analyzing" the remains 
What I've been trying to say, to someone else, again, I wasn't talking to you, is that the purpose of red-herring is to mislead. And, to mislead, you have to throw enough evidence to support the thought, because if there isn't any, then no one would fall for it. Which makes me repeat myself: "It's understandable for anyone to believe it as end-game."
Now, Kishimoto over-used, as minimum, the red-herring technique which from a writer POV is already a sin. The consecuence is that story-wise, despite his intentions (NH), NS would have make more sense. In other words, the red-herring literaly resource backlashed to him, which also makes him a bad writer.
On a different note, you have to remember that 1. Kishimoto made sure Sakura was waving hearts between Sasuke and Naruto at some point; 2. He, after seeing what he wrote, thought about making them canon for a time. These two points supports, logically, the theory that Kishimoto might have thrown more than just red-herrings at some moment.
