I didn't mind the score until I started paying attention to it. Once I did, I didn't like Zimmer's creative decisions. The use of vocals felt extremely pick-'n'-mix Orientalist, which it shouldn't have been. Appreciate that he's an old warhorse that studios just get in to do the sound on every Nolan, Scott "visual masterpiece", but a score that emphasised systemic or architectural feelings would've been more apposite to the DUNE I would've liked to see.
Agree with your take in general Coombs, I felt disappointed but didn't dislike the end product. I expected to hate it more.
Although it is a marvellous technical achievement in certain ways (see for example the use of "sandscreens" by Fraser to create plausible reflected light in the CG scenes), this video really hammers home the crazy cocktail of technical stretches that went into Lynch's effort, and its eclectic charms and relative fearlessness regarding the source material and Lynch's own creative obsessions.