What else is he supposed to say? He can’t really comment anything negative as it would be used to claim he’s prejudiced proceedings. A bland I wish her well type thing is safest to not allow her defence to use his comment. A similar thing happened in Charles manson’s trial (according to Vincent Bugliosi who prosecuted him). The then ores commented about the case and the defence tried to use it to get gun out as and it led to the jury being sequestered to keep them away from media reporting. Also the media is fizzing about it so it draws more normy attention to her and the nasty shit she was involved in.