It could have been more, could have explored the people that appear in the movie deeper. But, from a certain POV, it makes sense. Funerals and all that accompany them are very shallow, except, of course, for the ones mostly affected. Yet, their feelings are extremely difficult to portray in a movie, so it's reasonable to avoid that.
Even so, our protagonist, who hasn't even met the young man in his life - so isn't much affected by his death, is left with just a few twitches of the face, well done by Kevin Bacon, to show his own struggle - that he has lived a life of military service without really "taking chance", even when he way younger and was sent into war. Yes, such life is not one to bring wealth, but, has many other benefits. Near the end, he finally briefly says that, which you should have guessed by then, but, it's a little too late. Also, it's not explored, even worse, it seems that movie implies that escorting this young man's remains to his family, somehow makes it OK.
On the "technical" side, movie is well done, it moves the viewer and for the most part avoids any political or ideological influences. This is a story of how a rich country in a time of piece at home handles its dead soldiers (killed long way from home). It's pretty universal, apart from the scenography, of course, and is interesting to compare to how dead soldiers are handled in other situations.
