1. I wonder if it's twenty people per Vor, rather than per family?

2. I only just realized this, but ACC is a huge homage to Dorothy L. Sayers' Gaudy Night, in which a similar courtship takes place over months and years. I think LMB wanted to preserve the basic story of "man pursues a woman who believes she is broken and no longer eligible for love; realizes he can't 'fix' or 'save' her, is humbled, and apologizes handsomely; she is inspired to pursue him, and they all live happily ever after." However, she tried to fit it into a too-compressed timeline.