Ok..this looks like a rule regarding the judge and how they should maintain professionalism and impartiality. In my own opinion the judge has not broken any rules of conduct and I don't see the connection between this and the members quote you posted (about 90% of communication being non verbal) I don't see the connection. Could you explain?
I could be wrong, but I thought that post referred to the video of the Judge's reaction to a part of ALV's testimony. In any case, the video was referenced several times for that reason in this thread.
eta: regardless of whether the judge has broken a rule or not, I don't think that would preclude a motion for a mistrial by the defense? I think they've demonstrated that that's what they're gunnin' for imo.