The 1st two girls weren't all that scared suprisingly. That looked scary to me, but I've never been on a ride like that before. I wonder exactly where that particular sling shot ride is located. I know Icon Park in Orlando use to have one in operation.
There is a purpose for the camera to be there, if someone die came down at least there is a camera at there to protect the amusement. It could be hit by a bird flown pass or that person just pass out like that or a small lighting strike that person.