Got to watch the latest episode last night. Once again it was well done, but in a way I wish I had never read the books. They are really slow-walking the plot now. Nothing in last night's episode was even in Caliban's War.
I would say, rather, that they're taking the show's plot in the direction that works best for the show. I read
a review pointing out that this part of the book was mostly messages and threats sent between fleets, which wouldn't be very visual or effective for television, and would be too expensive to depict on the same scale. So interpolating a smaller, more character-driven story inside the narrative worked better for a TV show.
In a way it's depressing, because the book series is up to eight books, and going to have at least one more. There is no way Syfy will commit to the 10-11 seasons that the show would need to wrap up the plot.
It doesn't need to. The books already did that. The purpose of an adaptation isn't to copy the source verbatim; that would be redundant, since the source already exists. The purpose is to use the source as a starting point for creating something new, an alternative exploration of the same ideas. Look how much the
Game of Thrones TV series has diverged from the books (I gather), gone off in its own independent direction. It's become its own thing now, and that's good. Something can't be its best if it's trying to be something it's not. A TV series needs to do what works best as a TV series in its own right, and the books it's based on should only be a source of raw material to be reshaped. If a show creates a rich enough version of its world that it can find entirely new stories to tell that weren't in the books, that's a sign of the show's success and worth.
Granted, there are movie series like
Harry Potter and
The Hunger Games that have been fairly faithful adaptations of their source books, but that's easier to do in movies, with a finite number of installments. And both did make some adjustments and elisions to the source stories. And there's no telling how much potential they wasted by not diverging more. If you run the same experiment twice, with different variables, you're going to get different results, and it's good to follow where they lead instead of resisting them.