Ok, I may catch some flack for this but I have to air a couple thoughts. While the official story sounds like she was being oversensitive to some lewd jokes, and her side sounds like he was being a total jerk and ass to her, the truth is probably somewhere between. I wasn't there and haven't seen any tapes. Different people have different tolerances and appreciations for different types of humor influenced by life experiences, situations and family taught values. What some find funny and acceptable, others find unacceptable and offensive, but without honest conversations, behavior doesn't alter and misunderstandings and hurt feelings continue. I would like to know how did she approach him with her discomfort to his behavior, and his response. Did she have an honest attempt to discuss her feelings with him in private, or was it an aggressive confrontation? I am not victim blaming, but am just pointing out that when you feel offended by someone's behavior or comments, if you are confrontational about it, the other person becomes defensive and feels a need to save face, so a private conversation usually gets better results and no hard feelings. So we don't really know exactly what has transpired, but an honest private conversation may have made a complaint to HR unnecessary.
Having said that, she may have been written out regardless of any onset disagreements. I liked her as Faith in Buffy and Angel and I liked her in Dollhouse, but I found this character annoying so I am not bothered by having this character not in future episodes.
What I find most annoying about this whole affair is that the publicity around it does not help awareness or sympathy for women who are truly in similar situations. Even if she was fired the way she claims and for the reasons she claims, she was not hurt financially. She got a 9 million dollar settlement. Invested wisely, she and her husband need never work again if they chose and could live very well. Other women facing the same situation, getting fired for complaining about hostile work environments, or reporting hostile work environments are either laid off, fired, or given the option to quit and then must make do with unemployment insurance or their savings until they can find other employment. If they chose a legal action, it is costly and could take them years to get any compensation. These are the stories that should be getting more media attention, the stories of real women getting hurt, who lose their jobs, and can't pay their bills, or who have no choice but to stay in those jobs for financial reasons, not someone who, while she may actually had an unpleasant, uncomfortable experience came out of it with a 9 million dollar payout. Her story diminishes theirs.