Doesn’t the fact that it’s Sera VIII sort of give lie to the statement that they stopped toying with life and death a long time ago? Wouldn’t the properties of Limbo basically guarantee that Tussel’s remains are perfectly preserved (well whatever is left of her, the last example we saw of the extraction was a bit glowy (although with a bit of foresight that could have been dealt with as well, one imagines)), and thus good candidates for the brain scanning / downloading that Sera has been using?

Questions aside, I imagine that Sera VIII is going to make amends, as best she can, with Kindri and the remaining drones.