When frank Herbert died he left a safe deposit box with notes and a detailed outline for what would be the seventh Dune novel. When Brian Herbert & Kevin J Anderson started writing their prequels the details of the 7th novel were found and that shaped their Butlerian Jihad series to fit in. Now that they are writing the ending book (split into two) I can see the basic story that Frank Herbert had outlined but it seems like the authors didn’t read the previous Dune novels and are just working from an outline of what has happened before.
Technology is made use of thousands of years before it is invented. They have ignored information from the last chapter of the 6th book. They have a character running around afraid something will get found out when two other characters know it already and the character afraid of discovery should know they know (again from the 6th book). These things and more can be overlooked to get the story out, and the story telling is entertaining, but seeing these inconsistencies jar me out of the reading. I find it irritating that they didn’t even have someone who recently read the original novels read their new novels to point out any inconsistencies so they could be fixed.
I’ll still read the finishing novel but then I’m done with any other Dune novels they might write. I hope they decide to release Frank Herbert’s outline and notes when they are done. I’d like to see what was intended.