Since the film drew me to the book, Lynch did capture something :-) The other version, a TV mini-series, is an international coproduction (f.e. William Hurt is in it as Leto). An IMDB commenter titled his/her review "The Gutting of a Masterpiece". Myself, I only watched part of it, found it too didactic and slow-moving, though probably closer to the book.

_{*Lunatic*, n.
One whose delusions are out of fashion.}

"Parody" is kind. I have thought for a decade or two about what might have been his intent in making the movie as he did, and I am still at a loss. For a while I thought he was just fascinated by the wonderfully evil Von Harkonnen character, and let it take over (and rot) his brain. I saw the thing a (bleeg) second time with a friend, and just gave up searching for an explanation for the butchery other than that he really hated the movie, and, sensing a market for the more perverse images in Dune, seized on them, and got paid well to do an asassination job on it.
As you may be able to tell, I did not really like it much.
That said, it would be extremely difficult and costly to do a fair job on the movie- too long for one episode, I think. Unless the theaters were equipped for an overnight stay of the patrons, at least. Actually, to me it is nice to see a vision too vast, an imagination too unruled to be reduced to a three-hour non-involved absorption experience in a theater.
I know what a hobbit looks like, and I also have my cherished "Dune" in my head and heart. I am happy to keep my own images.

Capitalism searches out the darkest corners of human potential, and mainlines them.

Or possibly I did see the movie and deleted it almost entirely from my memory. I'm not sure.

For the record, you saw the worst scene of the movie, not a typical one. But Lynch was definitely self-serving with no good purpose with such horror bits.

_{*Lunatic*, n.
One whose delusions are out of fashion.}