>>21181421They went soft on the world in order to not alienate 21st century viewers. Needing to make what Herbert write into his book work on the screen for a modern audience would have had the movie have censorship campaigns against it for hate and intolerance, violence against women, defendse of slavery and toxic masculinity.
Without the force of its own world on its own terms it is captured in the nothingness of post post modernism and cannot leave a lasting cultural memory.