It’s already clear in the actual movie Holdo believed there was a spy, as no one in the Resistance believes that hyperspace tracking even exists.
That’s nowhere in the text of the movie. But I believe it would be easy to contextualise events so that it unequivocally reads as such, rather than one of many post-facto surmises.
It’s called an inference. It does not have to be spelled out to you.
Yes. I’m suggesting making that inference, one of many possible interpretations of the text, into the actual text itself. Leia and Holdo never talk about spies, they talk about following orders and being heroes.
To return to the key topic: has anyone hunted for any useful audio from either Dern or Fisher? Or would I be the first to go looking for this specific purpose?