The documentary is now available on NETFLIX.
It does present the parents as terrible people..
As Bob Cook in THE DECIDER writes in the description of it:
Between this tension in the 2013 film and the realization you can Google everyone to see if the parents’ fears are justified, you can arm yourself with the knowledge that turns the horrible behavior in Trophy Kids into an actual horror movie. You can yell at the screen like you might do during a horror movie, except that instead of saying, “Don’t go in the room!” you scream, “Don’t bother putting creatine in his milk!”