Though I don't really watch the anime anymore, wayyy too much filler.
My only argument is towards ep 166, they just put way too much emphasis on a simple moment, going to the point where it literally could have been that Hinata was killed off. That type of development from the anime and the ending of that episode is the type of stuff you would do like if they knew they would die. Like Jiriaya, they treated the whole event of Hinata facing pain like Jiriaya facing pain cept Jiraya actually died, but he was smiling in his death. Hinata's was an actual buzzkill of the scene, I mean I first remembered reading the confession chapter back in 08 and when I saw Hinata step out on the field I was thinking "dam she did something impressive" then I was thinking Okay Sakura will save her kishi just killed off Kakashi, no way he would just gimp another one so soon. Then rinne tensi comes along and while I was interested at the time that he would have done something with Hinata, guess what? Nothing, for 3 years. Nothing, he does nothing again with Hinata, just stores her in the back, Sakura still got the part of trying to make amends to Naruto, facing the 7 swordsmen with Kakashi and the bushy browed men. She even got a badassery moment with the white zetsu, so where the hell did Hinata go? Nowhere until 615 and it was short.
What I am saying is, for all other characters, they let the development from manga to anime flow as it normally should, even if its something so minor that makes little difference in the overall story, they just let it pass and die. With Hinata, they feel the need to make anything she does somehow distort time and last 5 times longer. If she actually got a fight against some person (not henchmen) and won, the fight would have been dragged on so much longer. Thats the deal. Anything with Hinata in the anime, it seems that it needs to last 5 times longer when the exact motives and purpose are much shorter than they need to be. Yes manga and anime do much dramatic drags, but its just to long with Hinata in this case.