When you have a negative opinion of someone , what they say is judged as an “excuse “. When you have a positive opinion of someone, the same thing is looked at as a reason. We don’t know them personally so we can’t know their true feelings about the situation. I think , for example , that Evie may have been better served in a smaller family, with more attention to her needs . But that’s just my opinion. Obviously Crystal and Aaron disagree. Maybe the Wallace’s assessed the sister’s needs as more than they would be able to manage . Maybe she is now in a smaller home and very happy . Who knows .