She ask Neji to protect Naruto because He was dying at that time,He no longer is in that predicament. She is still conscious at the time and calling Naruto mentally and He Heard Her. Signifying a strong connection between Naruto and Hinata that no one else has. And a possibility that a much more powerful connection between both will occur in the near future. A stage for something important is being built by Kishi.
That doesn't matter, like I said why would the author bother making a heavy dialogue if it doesn't serve any purpose.
Even with Hinata able to stand up and Naruto heard Hinata that doesn't change anything since Hinata remains being unconscious trapped under Infinite Tsukoyomi in the End.
Like I said if she able to stand up and fight, then everything what she said about neji is meaningless.
Also it definitely have strong connection between Naruto and Hinata, that's why Neji would appear because Naruto will be in danger either he's struggle with against madara/kaguya or caught under Infinite Tsukoymi fallen into despair in which Neji will come out and save him.