I know I'm really really really cynical, but is it possible that KN played this figuring the "secret" trial would get shut down, so he wanted to be able to try to get some sympathy for JA in a way that he'll argue Juan can't cross-examine because JSS/COA pulled the plug on her testifying as the judge had in effect promised she could?
That seems like a stretch, but then again it was a given that the press was going to fight it, and it seemed pretty likely the press would prevail. So he gets some freebie sympathetic testimony he was able to tailor and now will argue she needs to stay off the stand other than her allocution.
I dunno - the more I think about it....