Yes the NarusSaku moment in this chapter is certainly not a canonizing one. What made it poignant to me however is that Kishimoto decided to put Karin in the place of one worried about Sasuke. Even more so is the last page of the chapter where the girls are parallelled worrying about the boys. I already suspected Kishimoto to have Naruto brought to where Sakura was and to have her freak out about what happened to him. I did not foresee him giving equal weight to Karin in her worry over Sasuke. This is yet another blow to SS and a terrific shot in the arm for SK. SK was already doing as fine as it needed to up to this point, but this chapter raised it a few levels of prominence. Of course it doesn't decide anything about end couples but it certainly does hint at them.
As a NaruSaku fan I was perfectly satisfied by this chapter. Sakura reacted appropriately to Naruto's condition and if my eyes didn't deceive me it looked as if she could burst into tears at any time. Personally I'm glad that Sakura wasn't given a choice between healing Naruto or Sasuke. Not because she would choose Sasuke but because it would hinder her concentration. Romantic love or not Sakura still has feelings for Sasuke. It was a smart move of Kishimoto to avoid that problem altogether and have Karin and Taka be aware of Sasuke's condition.
As for Hinata... Honestly Hinata's trip made me a little sad. She's such a pitiful character it was actually kind of heartbreaking to see that happen to her. It's from moments like this that make me wonder if Kishimoto actually does feel contempt for her character.
For one reason or another yes, but I am guessing you are not referring to the NH and SS fans right? It's something I have question a while now, but I guess some people don't want to see it as a "win" because of how many times Kishi has trolled with pairing moments.
Honestly I don't think he's trolled any pairing moments. He just seems to bide his time and toss out teases and hints every now and then. Every once in a while a true paring moment happens. Sure it can be frustrating for diehard shippers but I guess that's just the way he does things. Any trolls I see derive from fans expecting too much.
Of course I'd like to hear what you think are some of the moments he's trolled. It may give me a better perspective.