Yes, I am suggesting that the diagram will be clearer to the user if the link that goes directly from Arron’s Father to Arron were not Orthogonal or AvoidsNodes. Same goes for the link from Arron’s Mother to Arron. You just showed a diagram published elsewhere that does the same thing that I am suggesting.
By genetic relationship I mean those links that are “marriages” connecting a father with a mother or that are “marriage-child” connecting a child with its father and mother.