I do believe there is some sort of bias here, of course everyone has a right to their opinion but by the sound of the review just seem like this person when in with a certain mine set, I honestly think the fact that the main character wasn't struggling with his sexual identity made it much less appealing, sorry just my thoughts.
How did you get he was "struggling with his sexual identity"? It was his whole identity, I think, not sexual, as in confused about which gender he prefers. That's what your post suggests. I agree with this review in that the director and write was too close and was unable to tell us the story in a more clear way to have a full impact. Too much was left to guess. It was too stressed without any clear message, it was convoluted. so perhaps that's why you came to the conclusion that he was struggling with his sexual identity?