Yeah, you're right. That's why I came to the conclusion that Sakura ended up taking the most crap simply because Naruto attracted a wider fanbase. It also didn't help that this fanbase has to be the most closed minded fan base I ever meet. The fact that people still call Sakura "abusive" makes me confused. It also makes me cringe when they say that Sakura herself was abusive towards Sasuke, out of all characters.
A lot of you are talking about the same thing but I'll just quote and respond to this post.
If you look at most of nH fans you can tell that they didn't see many of anime or have an understanding of their tropes, at the time of watching Naruto. Hell they barely watched most of the other anime that came to the states since: Dragonball, Rounin Kenshin, Spirit Detective, and many other had Tsudere as the love interest. Even some current anime on toonami have a Tsudere as the love interest.
Now the reason they fell in love with Hinata and why they are obsessed with moe characters is simple, they have never seen them before. Most media in the western world would be hanged to death if it portrayed any woman in a manner similar to Hinata. But Tsudere-like characters are very common in modern media despite anime fans in the US complaints about them. Now I keep mentioning it but why do nH fans hate one type of woman but love the other? Because Tsudere-like characters remind them of all the girls that either ignore them, reject them, or just want to be friends. While moe characters are their ideal woman that will love them unconditionally, worship the ground they walk on, and basically do what ever they say without complaint. So seeing a female that they have never seen anywhere else and fulfilled their desires to make sure they never get rejected by a woman, causing them to become obsess with hinata hoping that if she got Naruto they may find their own hinata.
Edit: Also once again because of the difference between how US media and Japanese media portray woman also had a effect on how they like the ending. In short once a girl get married in any in Japanese media it is expected that she quit her job and focus on being a house wife. Also she should get married as quickly as possible because a woman passed 25 is consider a Christmas cake (spinster) in Japan. While in the US It doesn't matter to woman in media if she is single, has one kid, or a dozen kids if kickass once she must always kickass. So while they are happy their pairing happened they are upset that being the hokage wife made her a housewife instead of into a badass (also they became enrage once she lost her huge breast). While in japan they were confused that nH and SS happened (and hoped for the best) they were fine with them becoming housewives.