The problem, as I see it, is that we so often excuse our wrongdoing by softening its effects, at least in our own minds. That is certainly true of parents who destroy the security of their children--first by fighting and carrying on, then by divorce.
Call it what you prefer, but it's certainly more than a mistake. And I think that in order for people to take the steps necessary to stop their destructive behavior, they need to first admit to themselves how very bad it really is.
I'm not looking for a fight but you obviously insist that my parents are evil for fighting. The article says divorced parents do more harm to children than non divorced. By these standards my parents couldn't win. Stay together and argue or get divorced and cause harm to the children.
I'm glad they got divorced. Everyone was suffering from that union. Now we are capable of having relationships with each other.
BTW I don't associate wrong choices with evil. A person who chooses the wrong partner to marry is different than say an islamic terrorists murdering children in their school. So I do take offense when my parents are lumped in with real evil.