Vallo really holds no logic. It's not the only place like this. It took my processor a while to work through it. But it probably won't ever make logical sense unfortunately. This place...it gives people a second chance. Somehow.
As for your programming, Maeve has a unique ability to see into what we are. At least she did where she's from. I have advanced knowledge of my applications too, and my own programming will never make complete sense to me either. I'm sorry I don't have a more comforting answer, but I suppose it's very human to never quite understand what you are.