I agree, its like they are trying more for an historical fiction drama angle trying to contextualise the audiences to the situation of November 1918 rather than putting it on Paul's point of view which is central to the story. But nevertheless, it still captured the most important details of the book, the insanity, the growing resentment, Paul's bitterness from reality after the death of his friends and his tranquil end in the midst of chaos as one of the many who gave for a few. Although not a major part of the book, it's historical authenticity is to be applauded.