Mortimore examines humanity in all its forms. Campaign is a series of philosophical questions. The image of Ian gathering the courage to slit his own throat is one of the most humanizing moments in all of Doctor Who. The Doctor often dreams that his family sleeps while he's away, a nice allusion to Lungbarrow. I personally like the talking Bulldog with the Bronx accent that reminds me of a Connie Willis novel.
Campaign takes Doctor Who themes and characters to another level.
It uses them to question the nature of loss, anguish, love, passion, contempt, idolitry, monotony, drunkeness, injury, lust and so forth. The book is filled with introspective monologues that will challenge you very philosophically and touch you very personally. That seems to be the question asked by reviewers, readers, authors and other assorted fans. To me, that's a moot question. Of course it has a place.