Tane and Archie, love it so sue me! Their scene with Mac was cute! I don't blame him for for warning Eliza off at all. The behaviour is unacceptable anyway, you don't film without someone's permission ever, least of all at that moment, I know some people do video births but that would be family not a random and also not in a situation like that one.
Harper is such a whiny brat right now, I'd honestly bet that even if she was freaked out by Eliza's vid because Tane's been, quite rightly, concerned, she'd be all over Eliza just to be spiteful.
I'm wondering if Eliza has an actual condition like either schizophrenia or even (I know it's not called this anymore but I cannot remember the modern name) Aspergers, given her obsessiveness and lack of social skills, all markers or Munchausen's by proxy even.