While I have no dog in this fight (I put up with my wife's abuse as a matter of course), I think it is a matter upon which reasonable people could disagree. In the earlier period, it was much more difficult to prove abuse, but with our "army" of social workers and such with nothing productive to do, I suspect it would not be so difficult to prove a truthful claim of abuse. Indeed, you could probably "prove" emotional abuse because one's husband refused to let the wife watch The View.
Within my own circle, a cousin of mine is in the 16th year of being "bent, folded, and mutilated" by the family court in Washington County, PA, which facilitated his divorce, took away his kid and a third of his income, took away his driver's license for three years, and flouted every imaginable principle of jurisdiction, with no means of satisfaction. They lived in Florida and she sued in Washington County, PA because her uncle was influential in that court system, and the Washington judge simply refused to give up jurisdiction.
"No fault," of course.