Some will write of the legacy left by an author who wrote one classic with her first published work, and then seemed to water down that legacy with a later work, that was not meant for publication. I have nothing to say about that. There are great authors who have released crap books. There are far more, however, popular, best selling authors who only release crap books.
How many achieve greatness? Few.
Let us not ask for more from the one who reached the summit.