Yea I agree! The ranking of this shouldn't be that low. It has its moments but I don't think it deserved the hate. Well kinda... I do see where people are coming from with it and I even have my own gripes about it but still.
Honestly, in my opinion, what could have saved this manga was if we get that cut off from chapter 128 and open up with the events of 130. Leave 129 ambiguous and as a "did she? did she not?" moment of tension. I think we can agree that it was that chapter that broke most readers. I wasn't a fan of it myself but, like other media, I got over it. Now I'm numb to seeing it when it comes to the emotions.
I would have liked to see the story keep going. The art to get better. The sex scenes to be spicier, the characters to be more developed and go through more situations. Everyone is confident all the backlash got the story axed but, while likely, I wouldn't be surprised if this was intended.
Thinking on it, I think I'll keep up with what KA does, even if she can't get this artist again, it's not like her own drawing is terrible. The art is good in the doujin is really good in her "Entanglement" story (I can't memorize the JP name for some reason lol) as I've read the uncensored versions. So I won't be disappointed if she's drawing her next story.
It's sad to see GraPara ending but if it gets an anime or a sequel I won't push it away honestly.