I have not seen this clip but last week Thomas Jr. posted on his youtube channel a horrible rant against Meghan where he states that she should be spat upon and have excrement thrown at her.
There is no way that Meghan was going to try and go through Samantha or Thomas Jr to get to her father, and I am pretty sure the same applies to Caroline Graham. I guess, understandably, she wants to get directly to her father and found an acceptable means, but I would not rule out that Samantha, Thomas or Caroline will pump him for info and then use it to further their agendas. Nevertheless, if Meghan genuinely wants to connect with and/or monitor her father, she should proceed IMO but with the knowledge that Thomas Sr. himself, and certain people he deals with, are going to act out.