In the very first episode, Margene is on the phone with her mother asking - almost pleading - for her to come by to watch a video, implying it would be a causal event for her mother to visit. Now it is made clear Margene's mother's visit is a big event that requires planning and a careful introduction, indicating she had no previous knowledge or awareness of Margene's polygamist lifestyle.
Bill states Margene has medical insurance under COBRA. Margene would not qualify for COBRA, which is continuation of group coverage after a "qualifying event".