It's possible that Jacint may have misunderstood the Chosen's will, here. But Jacint did say that she'd go hunting for masochistic female mathematicians and the Chosen didn't tell her not to... admitted, Jacint is, in theory, Sevar's superior...
Oh well. They sent her some boys anyways.
"I would not be too surprised, under his circumstances, if Keltham finds himself mysteriously dissatisfied with all the male candidates. Or - if the tropes try to stop us from adding males, do they do anything visible, that Keltham would notice? Like mysterious accidents occurring to all the males he chooses..."