I know first-hand about incest. My mother married a child molester when I was 4, and his abuse of me continued until I was 16 and left home. If I wasn't around, he'd just use one of my brothers. My mother claimed she didn't know. There's no doubt that she did know, but traded our safety and innocence for a roof over her head and food on her table.
I am now 62 years old. I refer to myself as a "victor over" instead of a "victim of" those years of abuse. But when you don't develop feelings of self-worth during 12 years of your childhood, it's hard to play catch-up as an adult. It's like trying to build a solid building on a defective foundation. I have been married to the most wonderful person in the world for 45 years, but there are times when I still (over)react strangely to a situation. When I sit back and look over the situation afterward, I realize that something in it has triggered the feelings of fear and/or anger that I was not allowed to experience as a child.
Have I "gotten over it"? Yep. But does it still affect me? Yep. Even after years of therapy. I can't judge how Mackenzie has decided to deal with her personal demons.