OK, so I went back to the book to see if the plot point I mentioned was covered, and technically it was, but in kind of a hand-wavy, nothing really to do with the Rikki Kinn we came to know sort of way. It is also one of the points you probably wouldn’t get if you haven’t read the prior books.
One potential flaw, if you will, in Liu’s universe, is the rather black-and-white set-up. Shades of gray tend to be more interesting, and the end of Twilight hands us a can of worms that has a lot of potential for adding some nuance to Liu’s Justice League.
That is all.