I guess that is one way to put it. ND tried to do something different here by showing that there are always two sides to each story, but apparently they didn't pull it off quite well, judging by people's reactions.
You know, it always bothered me (and disturbed me) the fact that so many people were not only okay with what Joel did at the end of Part I, but kept seeing him as a "hero" after that. So I suspect ND's plan this time around was to see how far they could take Ellie before people realize that there is something wrong with these characters.
Well I personally didn’t agree with Joel’s decision in part one. Needs of the many matter more and she wasn’t his actual daughter. But I get it, he was motivated by love. Abby, is not motivated by love when she does what she does. And that is why people do not like her, or at least in part.