He warns against spoilers, but the article at OGIUE MANIAX is actually rather tame by comparison with real spoilers that Hinano piles on us. Anyway, he says:

Hinata, before anyone else, was the first to realize Naruto’s true character, and it’s only natural that her admiration would turn into romantic affection.

Naruto is rife with great characters and of course Hinata is right there with the best, despite starring in worst episode of the classic series.

As for the ch.437, I think that Kishimoto is aggravated by the ridiculous move that anime gave Hinata in the filler ep.146 and decided that the only solution is to kill her off (or at best retire her like Lee before surgery).