I just finished it tonight. I agree with basically all that you say. I love the world of Abeth but couldn’t connect with the characters as well. The love quadrilateral or whatever it was didn’t feel natural to me. I did think Theus had potential (no way he was destroyed btw) and I really liked that they set him up as “evil” but correct.
If I had to guess on the time frame, I would say it is happening at the same time as The Book of the Ancestor (isn’t that the ninja nun trilogy’s name?). No real reason to assume that other than the fact that BE and RQW ran parallel.
I don’t know if I specifically remember the needle trick or not. Taproot was originally a contemporary Earth human (from our time pre nuclear war) who would freeze himself regularly and then unthaw every so often to poke around and influence events. During RQW, at one point he got trapped in stasis by accident and Jalan had to free him.
I’m confused as to the progress of these books. Taproot certainly seems to be a program running with The Missing. It is implied they came here from elsewhere and Erris says they thought they would have hundreds of thousands of years, but they wound up with about 10,000 (he says a hundred centuries). But the four tribes are also said to be “beached” here with their ship hearts. Ship hearts can be tied to each of the four tribes. But the ship hearts are obviously already tied to the missing.
Taproot was a live human with Jorge and Jalan, but is now a program. When did humans leave Earth?!!? Does the Broken Empire eventually regain space flight? Or could there have been humans that fled Earth before the nuclear apocalypse and took a digitized Taproot with them??? (If they left post BE... could we see digital Jorge again?)
I can’t wait to read the next one and see where all this is going. And I hope now that he has this trilogy finished, he can get back to finishing the Jalan/Snorri in The New World story that he teased with a fantastic snippet in the omnibus first RQW!