I did consider that cheekyweeshite, but iirc in s5 she started the recording when the paramedics were already arriving in the background, whereas she started when no one was around in s3.
I’ve literally just rewatched it in the last few days.
She is already recording before the paramedics move in, and he’s talking. Around the time the paramedics move in, he says something about Fairbank but you can’t hear what he’s saying. The camera pulls away.
On the video of the declaration, she’s continuing trying to get him to talk. Then he starts struggling to talk, then he can’t talk and we get to the blinking part.
I used to think the same but it does work.