Yes, Nell's character growth and arc was completely reliant on Miranda having a parental instinct and Nell being a child on a fast track to RAD before the TYLIP. The story about her character is absolutely about finding a human that loved her, through an unlikely mechanism. I just take issue with the idea that TYLIP's story is about how a human touch is needed for the concept to work, because as far as I remember that's not the case. That's Nell's story, not the Primer's.