Surely acceptance contains a certain level of neutral emotion. Apathy might be healthier for them than anger, on a historical situation that they can’t bandage. Perhaps they shouldn’t advise apathy, but I see some people move on from some horrific events in a variety of ways, and some of those ways would be marked as unhealthy by pop psychologists. If apathy works for them, who should argue.
Also: are you suggesting they should look at themselves as a victim? They might be in one sense, but in other senses they might not be.