Small problems with that point of views : the organic and the cyborg comes from differents universes and have differents pasts, desires, persepectives and objectives. The synchronisation doesn't retroactively change objectives factuals past events. Gaining memories of somebody doesn't make you the actor of those memories. If you are given the memory pov of a murder, are you responisble for the murder, should you go in jail for it? I guess not. Then why should action done by a separate body whose creation is not of your own doing and where the synchronisation was forced upon you be seen differently? For my part the creator didn't manage to convey a way where the mc original identity isn't lost in the story and thus I felt disconnected and annoyed by the cyborg. I don't like multiple protagonist stories, that removes immersion in one's avatar.
Concerning the mix of sci-fi/fantasy critics : there is no such thing in this story, the technological universe is separated of the magical one, no mix and technology anywhere to be seen. Every magic components of the story is kept separated from the science part, the cyborg goes to space where there is no wizard and the magic academy has a field that perturbs tech. So no it's not t being narrow minded it's the creator having done a bad job of combining two story by making them exist side by side. I'm personnaly a big fan of magitech or sci-fi with mystical power (star wars and the Dune books serie are a good example) but this is not that.