A damaged MiniDV recording would be filled with digital block noise when played back, not the analog sync losses, color changes, and ghosting in Marwan's video.
Paul's chest and abdomen doesn't have any marks, opening or signs of equipment at all at the end, when Jack and Curtis are making efforts on him, even though he is supposed to have been getting an emergency heart procedure from a surgeon who needed multiple assistants.
Jack doesn't wear medical gloves while trying to revive Paul.