Riley has fixed some things from their previous book in this trilogy. It doesn't seem so much like just a 1:1 of The Hunger Games anymore, although there are some parts where it still clings to the THG format seemingly just to do it and it makes the book seem insincere. For example, Brohn and Kress still really don't seem like they're actually interested in each other but every so often Riley will bring it up as if they've forgotten they want a Gale/Katniss romance and are trying to shoehorn it in before we forget that these two characters are supposed to be into each other.
I feel like the book/series would be a LOT more interesting if Render wasn't a normal bird. So far it seems like he's just an exceptionally intelligent raven, and I feel like I would be sucked in a lot more if he was able to communicate besides just an empathy link to Kress. Not that I'm adamant this is the direction the series should've been taken but it would have captured my attention a lot more.
Character development seems pretty nonexistent here, tbh. In the first book everyone had a pretty dynamic personality; in this book, it feels like everyone is just there to be a different name to add to some non-specific dialogue that doesn't show any personality. The only one who seems like they have anything going on is Manthy, who the rest of the characters treat pretty badly when they find out that she really does have techno-empathy/technokinesis-adjacent powers. They're always demanding she do this or that with tech even when she begs them not to make her because it hurts her to do it, which makes the rest of the Conspiracy seem cruel... not a good look for people who are supposed to be protagonists and people who can't serve in a fascist army specifically because of their high levels of empathy.
I agree that there's no way Wisp should be heading anything at thirteen years old. She very much sounds like a forty-year-old and it hasn't even been six months since everything from the first book, so not sure why she is able to be in the position she's in especially as just some person from a town far away from San Francisco with no connections or anything else of the sort. Though I did like Olivia. She's got a really cool character design. If Riley's characters could all be as interesting as that, I would have a much easier time reading their work.
That all being said, it's not a terrible book. I feel like Riley can be much better than this and is just stuck in a rut. Nothing to be ashamed of. I've dealt with the same several times throughout my writing career and I feel like if Riley reads a lot of other types of books (ones that aren't YA dystopia), they'll continue to get better and figure out how to make an engaging story with unique and interesting characters. They're already doing a pretty good job. It's just shy of being where it needs to be to really capture people.