A huge portion of the "Herbert never explain/explores X" issues that the author of this post has are addressed in the subsequent books... It's like going "Well,

A huge portion of the "Herbert never explain/explores X" issues that the author of this post has are addressed in the subsequent books... It's like going "Well, we're only going to watch A New Hope for this review of Star Wars, and Lucas never explains who Darth Vader is!"