Melchett and Courtney,
Perhaps I can help a little.
The USN and Navair in particular have been bringing new aircraft to flight decks for longer than anyone else in the world. They know this stuff backwards, forwards and sideways. So:
1. I would be extremely surprised if such cameras weren't installed for the trials. I would also be very surprised if the videos were publicly released before they were thoroughly analysed by Navair.
2. I would also offer the thought that the F-35C would have got nowhere near the flight deck unless Navair were totally convinced (and indeed reassured) that the aircraft can reliably take a wire. I'm sure that if any of us posting on this thread were actually involved in the project and required that reassurance we would get it. We're not, so we won't.
Best Regards as ever to those working the issues and making the hardware work for real
Engines