Maybe in order to get the message across to BH & KJA, you should do a variation of Petronius' suicide speech from Quo Vadis.
[in his dying letter to Nero] To Nero, Emperor of Rome, Master of the World, Divine Pontiff. I know that my death will be a disappointment to you, since you wished to render me this service yourself. To be born in your reign is a miscalculation; but to die in it is a joy. I can forgive you for murdering your wife and your mother, for burning our beloved Rome, for befouling our fair country with the stench of your crimes. But one thing I cannot forgive - the boredom of having to listen to your verses, your second-rate songs, your mediocre performances. Adhere to your special gifts, Nero - murder and arson, betrayal and terror. Mutilate your subjects if you must; but with my last breath I beg you - do not mutilate the arts. Fare well, but compose no more music. Brutalize the people, but do not bore them, as you have bored to death your friend, the late Gaius Petronius.
How about this as a variation?
[In his/her dying letter to BH and KJA] To BH and KJA, Heirs to Frank Herbert, New Owners of the Dune Copyright, First Consuls to the Dune Universe. I know that my death will be a disappointment to you both, since you wished the opportunity to still prove yourselves to me. To be born in your time of writing is a miscalculation; but to die in it is a joy. I can forgive you for being inconsistent with your story about Frank Herbert's notes, for confusing the Dune universe to such a ghastly state, for jealously guarding the copyright for yourself, for covering up for your many mistakes while writing the books, and for befouling the realm of sci-fi even more than it already has been. But one thing I cannot forgive -- the boredom of having to read your books, your second-rate stories, and your mediocre writing style. Adhere to your special gifts, BH and KJA -- making messes, and covering them up. Mutilate your lives and business practices if you must; but with my last breath I beg you -- do not mutilate the art of writing novels. Fare well, but compose no more fiction. Brutalize your readers, but do not bore them, as you have bored to death your persistent follower, the late Jacurutu User.
'...all those who took part in the rise and fall of the Dune project learned how to fall one and one thousand times with savage obstinacy until learning how to stand. I remember my old father who, while dying happy, said to me: "My son, in my life, I triumphed because I learned how to fail."' -Alejandro Jodorowsky