The row about misgendering at this point in proceedings, strikes me as desperate.
There's been plenty of ample opportunities to do this - why does JR now suddenly feel the need to intervene for this witness when she hasn't on Monday, Tuesday or Wednesday of this week when it was going on?
It suggests it's HER who doesn't like this witnesses evidence rather than trying to make it easier for her client. It's almost a reminder to the witness about whose side she's supposed to be on.
The double think and getting confused about it all, actually highlights a pretty good point though. The cognitive dissonance of having to put aside what you know to be true and all those learned experiences and tow the line affects how people treat a situation or what they say. You aren't treating someone 'exactly the same as anyone else'. The idea that when someone transitions 'they are still the same person' is a myth because the act of transition is a request for you to treat them differently on the basis that they aren't the same person as before.
This is why pronouns matter - it makes to Sandie's case as to question her barrister is allowed to 'misgender' or not because the sex of the defendant is essential to the case. It wakes people up when you start going 'he went into the women's changing room'. Or you start using preferred pronouns in contexts which make the contradiction glaring - like "her penis".
The judge intervening could be for a number of reasons. He may see it as a deliberate football to try and influence and intimidate the witness - by JR not NC. He's not had a problem up til now. The request to make NC comply and her refusal might urk the judge but he may also reflect on why it's so important too.
I think it is fascinating. No one can say that pronouns are neutral and don't harm anyone when we see this literally being argued out in court in this way.