Of course, I often speak my mind before I have ALL of the facts, and I don't know everything in this case. But I will stick up for Joan Rivers doing what she does - especially compared to things I hear other comics doing these days.
But it has to be under the right conditions. I do agree that she would be out of place as a "lecturer" on a cruise ship IF she did her routine. But I have also seen her on shows where she plays it straight with nothing obscene or crude for an entire show.
She is not a stupid or crude person at all. She could have stayed within the guidelines given to her. I just get tired of people thinking they have to police what other people choose to do or see.