I like the point where they slam Encleadus on Venus to get it moist.

Arthur C. Clarke wrote in his "3001: The Final Odyssey" novel about exploitation of Saturn's icy rings for water and grazing space ice blocks (wrapped by reflective molecule-thin foil) by comets shepherds, who were also delivering these to terraform nomen-omen, Venus.

Perhaps he read this paper and got the ideas from it

I did read that book too, but it was a decade ago. Had forgotten there was this concept in there.