According to all the research that I have done as to why agents choose to represent a particular author, or as to why publishers choose to publish any author is because of the markets fickle appetite. Under this supposition it is conceivable that any of the greatest authors in history, if they were alive today, would be subject to this phenomenon. This phenomenon also has a very circular and enabling effect.
The phenomenon circular effect is to redirect the suspicions that the author has from his own works to the audience, and then after appealing to the audience through the filter of agents and publishers looking back at his own work. The enabling effect of this phenomenon may be considered both good and bad. If an author's writing spirit is enabled this should always be considered good, however, if an author changes what he is writing in order to enable the audience and their fickle appetite this could be considered bad.
As I was saying this is the most current answer to the question that I am able to surmise by my various years of research.
German Occupation Of Guernsey