At the beginning of your video you see some good size yellowtail swimming by. A friend of mine was spearing big yellowtail at Guadalupe several years ago when he was attacked by a Great White from behind-never saw the fish. His son was on board watching his dad diving. By the time his dad was able to get back to the boat Al has lost most of his blood and died on the aft deck while others were holding his son away from the trauma. This was not at the same spot on Guadalupe where the sharks come once a year to be seen by people such as you and me. It was at least a good 6 miles down the lee side and away from the cage boats.
