The theme of Arrival

Rating: 6/10 (20 January 2018)

Arrivel has a great direction and acting. It has memorable scenes as the scene of the protagonist's first encounter with the aliens. Yet I do not understand the great acceptance he has been having.
Two excerpts made me very uncomfortable with that film:
There are problems related to communication between the leaders of each country and the soldiers who are in service. Many times the dialogues are forcibly difficult just to move the plot to other places. At least for me the dialogues were poorly written
Another problem I see is the fact that the death of a loved one came back at the end of the story and having an important weight, this made me question the real theme of the film. Is it a film about translation, understanding and above all a new way of understanding of life as a whole as the main character has? Or is it a movie about accepting a loss, being able to accept life as it is? What relationship can we establish between the whole main plot involving communication between aliens and humans and the story of loss of the main character? I understand the point of how she sees the past, present and future with the memories she has of her daughter, but still the story of the daughter seems to me disconnected with the plot of the film.