Let me see if I understand you correctly:
"I just want to point out that you can't ask readers not to have an opinion, or not to have the freedom to discuss, just because the author who wrote something may have intended it one way." That's your POV and from mine she has been faithful all this time to the nature of her characters and the original story's plot.
But:
I've shared my impressions about Keiichi and Shingo with persons with the same opinions and with others that even they don't think the same as I do it was quite interesting to read what they have to say about them.
The majority has the tendency to support one character or another, but I prefer to analize both of them and get in their shoes and try to understand them (and trying to remain in the plot that the mangaka has developed in the story, not adding what I think they should do...that's another thing entirely).
If you feel she has been faithful, fine. But you can't seriously be suggesting that because that is your opinion that none of the rest of us may disagree and therefore discuss what we might consider to be a divergence from earlier character traits or an imbalance in reciprocity.
In doing a character analysis , especially if you had already do been doing one, and then a mangaka suddenly does something that is totally out of character, not just once but several times to suit plot requirements, how do you as a reader feel? Or if the characters as they had been start devoloping unnaturally in a direction to suit plot, i.e. sacrificing character for plot (came across that in a book), again how does the reader feel? There will always be times when, right or wrong, readers will feel that an author took a story in a wrong direction. And sometimes they will have very valid points. This why most authors like to have beta readers to give them feedback.
"But you can't seriously be suggesting that because that is your opinion that none of the rest of us may disagree and therefore discuss what we might consider to be a divergence from earlier character traits or an imbalance in reciprocity."
Oh, absolutely no! Everybody is entitled to express/have their opinion, if not this discussion wouldn't have happened in the first place. I think that I've made clear my point before but to wrap this up, according to MY POV and TO MY INTERPRETATION of the story itself, all I'm saying is that most of the readers should not put their own expectations in one or another character based in "this would be the right way to act because it's what is logic or close to real life" and probably not going with the flow of the story thing that for me until this very moment, it has maintain the bases of the original plot (thing in that you and I totally disagree, and IT'S OK!).
I'm not suggesting to you how you should interpret the story either, not at all. I'm giving you my perspective just for the sole reason to share thoughts about it. This I thing, will be enough and thank you for take your time to share your thoughts with me, especially under the amiably tone!
Have a nice day ╮(￣▽￣)╭
I didn't know fujoshi these days work on the side as manga character psychotherapists and whenever something is not handled perfectly (which is supposed to work in a way that makes the characters be more HUMAN and not copy paste stereotypes that deal with EVERYTHING as if they have cold logic and no irrational actions because they are supposed to be IN LOVE) they are giving advice to said MANGA CHARACTERS about how the mangaka should have written out their actions... ugh where is the world heading to.
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ok I'm done with my rant bye