I do wonder if some of the ones that don't want to be shown are employees from the jail who have had problems with JA and are required by their job to be there. If it is, I would not blame them for not wanting to be shown on tv. IMO it could be very dangerous for them to be shown on tv.
I see no reason why Jodi's family would need for the camera's to be off. Everyone has already seen their faces. Especially the giggling twins that had so much fun in court the first time around.
What I would like to see is a packed courtroom in support of Travis. Have the jail employees, and other officials give their reports. Then have Travis' friends speak followed by his family. Then when Jodi supporters start speaking have everyone that supports Travis get up and leave emptying the courtroom, and have the media cameras turned off. Then have the courtroom fill back up, and the media camera turned back on for JSS to give the sentence of LWOP.
It would be even better if the defense went first to an empty courtroom, then have the courtroom filled when it is the prosecutions turn. I just don't know what order they go in.