I'm surprised that the FL hasn't made any connections to Lethe and Esthel

Well, when she saw her the last time she was a baby, didnt show any specific traits of her personality, besides I think Chloe didnt even think that she could have given birth to a saintness. She thinks too little of herself and Esthel is a chosen child of a goddess, so she wont even cosider that someone "as lowly as her" could give birth to her.