Rays are certainly a good way to test your knot tying skills

But as you mention in your video, getting them to shore is one thing. Getting them out of the water is an entirely different matter.
Sometimes 50% of the fight time is spent with the ray less than 5m from the rod tip..
You might think that once the shock leader is on the spool you can clamp down and bully them on to the beach. Not so, I did that once and it just snapped the shaft of the hook