Thing about abusive relationships is, though, many (I would go so far as to say "most" but I'm no expert on the numbers) people in one have lots of options to walk out... but they either don't know they can walk out, or they don't feel that they can.

So telling them it's their own fault for leaving, when they didn't really understand that leaving was an option, does blame them unfairly.

Now, when the analogy is employee-employer, the "don't feel that they can" so often doesn't apply: the psychological reason for not leaving ("but I love him!") is almost never something the employee feels. But the "I feel trapped" reason (it's the only job I could find that makes nearly the money I need for my mortgage, if I leave then we might lose the house, etc.) VERY often applies.

EDIT to add this P.S.: I understand the intent of saying that was to advise people "Hey, walk away when you get the chance, otherwise everything that happens to you was 100% avoidable". But saying "it's your fault" is going too far. I've seen people claim that statements purely intended as advice (like "Hey, if you park your car in THAT neighborhood, you might wanna lock your doors and not leave any valuables in sight so nobody smashes your window") are victim-blaming. But it's really, really about the phrasing. The example I gave was definitely NOT victim blaming. Saying "Well, you were asking for it by parking your car there" WOULD be victim-blaming. The way it's phrased is very important. And saying "all that follows is your fault" is most definitely wrongly blaming the victim.