Oh they are Phantom not trying to give them any excuses here this is the kitten they wanted now they have to live with the trash.
I know a former NH shipper but was one of the few who liked Sakura but after Pain and what Hinata did which as I remember he said: Did this dumb ass kitten really jump in just to say she loved Naruto without a mother F...ing plan
And after that he began switching to NS he wanted Sasuke six feet under ground. We do talk about the BS and he said he was happy he dropped out of NH after Pain.
With all the craziness that we had to deal with regarding the NH and SS fans (and still do, with less intensity), we can easily forget that they are NH and SS fans out there that are chill and can see reasons.
Some fans can enjoy the idea outside the canon reality (like fanfiction) and hate the canon, some can accept that the writing was kitten but accept the rest and some, while not agreeing with everything, can admit that NS (with SK) was the most logical pairing(s) that would affect the story a lot better for the majority of the main characters and also, would have a much better flow with the story in general.
I have a friend that was shipping NH and I told her, read the integrality of the manga vs watching the anime and you know what, she did and said that it did make a lot more senses to have NS as canon and understood now a lot better my points. She even said that while she was no longer a fan of the serie, that with all what she compared, she would have probably change from NH to NS for sure.
Hell, when starting watching the anime, I was a NH shipper (not an hardcore one tho just enjoyed it a little) but as soon as I started reading the manga, I switched instantly on NS. With that point in mind, I totally get why, only anime fans (mostly the westerns fans), ship hard NH because right from the very beginning (at least, with the fillers episodes between the first part and shippuden), SP was bias with Hinata.