IMO Emily's parents, who are divorced and live in different locations, and the Hendricks, Ricki's grandparents, are none of our business, if they don't want to be or Emily doesn't want them to be. Evidently they are not part of the story of this Bachelor at this point and may never be. Whether they are part of the story in real life has nothing to do with us, except for our curiousity.
The Bachelor is so negatively invasive into the lives of the cast, that anything that they want to and are able to keep private is positive IMO. Any cast person should be able to draw a line with their personal information and their families on the show, should they choose to.