Sheesh I was not ready to read that, nor get as hooked in as I did. Some of those bullet-points are things I've witnessed first hand in an 'IRL' parenting group from some now ex-members.
As an estranged child I was not ready to read that. Sent it to my other sibling (also recently estranged from the family) and we're both just...in shock.
I had the same reaction. Pretty mind-blowing that it's so common, and that they encourage each other in their... what I can only describe as 'Evil'.
The abusers and their mental gymnastics not only hit home, it drove home the point that I was most definitely right to distance myself as much as possible rather than ever hope for some sort of reform.