Robyn’s dad - possible slip?

Something I noticed in the episode last night… Robyn said that her dad was a surveyor and they had him out to CP. Do you think she basically let it slip that her dad help them decide what properties were worth more and which ones they should try to take from the other wives?
I know it’s a broad statement, but when she said it I wondered…he did something to help Robyn regarding CP and the understanding the values of each piece.
What do you think about this? Did you notice it too?

P.S. every week I think he cannot do it, but then he successfully declines further and further into vile turd-dom.