Ok, well the perp, and only the perp, is at fault for the crime.
I think the victims themselves may have unvented anger remaining and maybe they are expressing it in a somewhat ineffective manner. I think that's forgiveable. I'm not saying it's ideal, just understandable.
Imagine your deepest, darkest, most humiliating secret. One you buried a long time ago and tried to pick up the pieces of your life and move on from. But you can't. You're still hurting and maybe others are being victimized now too. Keeping silent is becoming a less rational option--you feel compelled to take action. You tell the horror story to an attorney, and his/her staff, then in a deposition, then in court. To strangers. Also, to the perp himself, who may get gratification from hearing you talk about it. You may even be afraid to see him.
Now, are you going to be the most calm, articulate version of yourself?
As to what their attorneys do, you can't 100% blame the clients for that. The attorney's job is to win the case and sometimes that means saying and doing things that aren't necessarily the same thing you and I would.