I believe that authors don't have a responsibility to include "messages" in their work, but they do have a responsibility to write a world that seems true and real, never more than when expecting readers to believe in magic and angels and fairies.
Cassandra ClareHugo is a raven,and, as such he knows many things. I, meanwhile, am Hodge Starkweathe, a professor of history, as such, I do not know nearly enough.
Cassandra Clare