Oof, that's dangerous. Generally heavy long stuff like that is carried by multiple ppl/points not simply because of its weight and awkward leverage, but actually because the material itself is not able to support its own weight otherwise. It's why we get so many videos of boats being lifted for maintenance, but folding in half or outright cut straight through by the ropes (and why underwater mines explode under the boat and not on them, splitting them in two through the air-bubble that hits the boat).
This metal seems to have survived being lifted like that, but odds are that he still ruined the part creating internal faults that will become a point of failure from the expected stress once boat is in use (sort of like why you really should not use a brake (climbing gear) if you dropped the metal on rock or whatever's hard, just to be safe.