Sakura has absolutely no understanding of real love. She's still hung up on that 12-year old image she created without any good reason to love Sasuke (something Sasuke said himself ironically). She's trapped in her low self-esteem and even feels like it's all her fault for how Sasuke is, deprecating herself degradingly. It's so pitiful I feel bad for her. It's like Sakura doesn't think she deserves happy love because of everything she's used to with Sasuke and that's why she keeps his thing for him going. It's literally all the girl knows. That's not anger-inducing ... that's tragic. 
But it's still appalling to my eyes to see Sakura beg and cry to Sasuke with a love confession when I truly believed she was more evolved than this. When Sakura had that pissed off expression, I got excited and expected her to finally tell off Sasuke but all I got was more of the same and then some. Worse actually, because it gives vague undertones of P1 Sakura and it's just so hard to watch as her fan.
I thought I'd be angry with Sakura, but the truth is I'm not. I'm angry at Kishimoto for making her character development regress a bit and I feel incredibly sorry for Sakura at the same time. She is better than this and she can be, but Kishimoto is taking way too long to resolve it. Sakura's feelings for Sasuke have always been unrealistic, but this takes the cake.
It's funny because, in a way, this chapter reminds of uncomfortably extreme version of what I originally thought before 675. Sakura does still love Sasuke and for whatever reason refuses to see her true feelings for Naruto. There is no doubt she has them, but the girl is so freakin' confused and trapped in learned helplessness through Sasuke that she can't see what is really love when it's right in front of her.
However, even I never expected Sakura to be like this. I never thought she would make such an emotional display so openly after everything's that happened. Sure, Sakura is guilty, sad, ashamed of her feelings but to plead to him so spinelessly and cling on desperately to the appeal to any shred of the old Sasuke, it's just ... wow. This is the guy who hasn't done a decent thing for her in four years and she would still lower herself in front of everyone like nothing's changed.
I said it before and I truly mean it. I would be okay if Sakura still loved Sasuke and didn't fall for Naruto, but I can't handle her chasing after Sasuke again. At the very least, whether she still feels those things or not, she needs to grow up and realize she deserves better. That she needs to try to move on not because Sasuke's not interested, but because she wants to. And if she truly didn't love Naruto, I would simply be happy she had esteem to make this choice and stay single. She doesn't need to love Naruto. She just needs to like herself.
Sakura did regress definitely, but I still don't think it's not to the extent of Part 1. Sakura's goal is still Team 7 being together again, not being with him romantically and she does see how horrible Sasuke has become. That's still better than how she used to be, though at the same time her development took two steps backwards.
There is only one major thing that makes me mad. And no, it's not that Sakura confessed her love for Sasuke in front of Naruto. She was clearly desperate. It was the fact that Sakura focuses on her feelings for Sasuke. She vents how much pain he causes her, how much she cares but gives no input on how Kakashi and Naruto feel for him and go through. But what makes it really bad is that Sakura already did this. In Part 1 she threw all her cards down and that didn't even stop Sasuke then. Where, in her miserable mind with the way Sasuke is now, did she think that would work? It's redundant and makes it look like Sakura learned nothing.
I'm so disappointed in this chapter. I would've handled Sakura's speech much better if she talked about what they all suffered and went through for Sasuke yet still cared, not just her. It made Sakura look selfish and she's supposed to be more about T7 at this point, not Sasuke. I honestly don't know what the hell Kishi was smoking when he wrote this. 
As pairing-wise ... SasuSaku is definitely dead as far as canon, no questions asked on my front. This last emotional outburst and callback to the SS confession combined with all the emphasis on her suffering practically cements that. And NaruSaku will still be canon, though I'm very sad to say it will not be satisfactory or realistic. 