Lack of great supporting characters (or any at all)
It is a pity a beautiful movie like this feels so empty and lonely. It was all wrong to choose the chicken as her sidequick instead of the pig in the first place. And Maui is poorly written and unlikeable most of the time. I feel this movie could have been greater with more characters introduced in the journey travelling along Moana.
I give it a 7/10 for the amazing visuals and the soundtrack.