I read your review and as no shock we see things quite a bit differently. I think part of that comes down to your expectations for the character. Other parts probably have to do with how different our life experiences are at this point. To me, the story was about how do you deal with continuing life in the face of unspeakable loss. Sometimes in those situations you have to find your own win and not everyone around you (even people who love you dearly) are not going to understand. That might be me projecting a bit of my own reading on the situation but I don’t think so considering where I think the creators are coming from.
I honestly think this will be an evergreen book. Hopefully, they do a nice hardcover at some point. I really need to do a reread in one sitting.