First, I don't think I can call Kishi a sexist. Stuff gets lost in translation, and the cultural divide comes into play here. More than anything, I think he is just incredibly ignorant. And I don't think we need to say things about how he must be terrible to his wife and child etc. That's his personal life, it isn't any of our business. His writing capability or lack thereof is what we are fair to criticize.
Now, even if he meant Sakura would have been terrible for "stealing" Naruto away from Hinata and not for getting over Sasuke, he still ended up pairing his heroine with a guy who stabbed through one girl, and attempted to do it twice to her. There's no excuse for that. I don't see how you can defend his actions here. What's Kishi's excuse though? Asspulling of course, remember that BS about Uchiha's going cray cray whenever something involves LOVE? I imagine that's what were going to be told, that it wasn't all his fault, his life was very traumatic, and his cursed Uchiha blood made him attack Karin and Sakura.
Concerning Hinata...I never liked her character much but I don't hate her. I had hoped that she might grow, use her admiration of Naruto to grow up and become something more. For her to overcome her shyness, for her to stand up to her father and what was expected of her and do something about Neji's situation. Instead, she became nothing more than a plot device. She continues to have tunnel vision, with the only possible thing awaiting her in the future is the chance to be in a relationship with Naruto. The only times she had meaningful interaction with Naruto were during battles. When Neji wrecked her in the Chunin Exams, when she came and got one shotted by Pein (in the manga at least, Studio Pierrot had other ideas for the anime), and finally during the war where she gets to have Neji die for her ship. And even with these moments, Naruto never reciprocated her feelings. Their total interaction in the manga was so severely limited, that now they are going to attempt to fabricate their romantic development along with SasuSaku and the other under developed pairs within an hour and half of animation and call it a movie.
I guess it's a small consolation that we were right, we didn't read the manga wrong. The development was there and it wasn't intended as something merely platonic. However, it will be remembered as unfinished work, like the manga as a whole has felt honestly, since the Pein arc. I'm admittedly posting some of this out of context, but I just feel the need to vent my frustration with the manga as a whole, this isn't just about who ended up with who, Like...
When Kishi decided to just magically resurrect the victims of the invasion. Then have us watch Sakura's botched confession, to her being unable to harm Sasuke who was all too willing to stab anyone within striking distance. The whole war, with all these dead ninja brought back, just because it seemed "epic" however it got old in no time. Suddenly there was a god tree, Madara was actually Obito, the real Madara showed up anyway, and then Kaguya was introduced and dispatched in such a fashion, that I still don't believe that this is the ending Kishimoto originally intended because it is so damn convoluted.
Sasuke was actually turning into a great villain, but that presented a problem when ultimately, Naruto has to redeem him no matter what. So we get the BS Uchiha love disease, and Itachi is able to turn Sasuke down from psychopath, back into brooding antihero. Then he helps Naruto and company with the aforementioned clusterkitten of enemies, and oh, by the way, he and Naruto are suddenly brothers reincarnate or something. Terrible, lazy mess of an ending used to create villains worse than Sasuke in order to take the heat off of him. And after 698 chapters of having displayed zero romantic interest in ANYONE, Sasuke finally acknowledges Sakura with a weak forehead poke, and thus there romance begins.
If he decided against NaruSaku, because he feared it would make Sakura look like a terrible person, why have her make the terrible decision to end up with Sasuke? Why demote Hinata into Naruto's silver medal? WHY MAKE THESE PAIRINGS SO INCREDIBLY ONE SIDED, THAT YOU ARE FORCED TO RETCON NARUTO AND HINATA'S PAST IN AN ATTEMPT TO JUSTIFY YOUR HALF BAKED EPILOGUE?
All the mistakes that he placed into the final half of his manga easily outweigh the "terribleness" of Sakura abandoning her childhood infatuation, whilst Hinata loses the chance to be with a boy that she only occasionally talks to. In my opinion anyway.