This is what happens when you have too much tongue weight...

I’ve seen the video too. This is NOT a photoshop.
While I don’t know exactly what he did, I think it’s pretty likely this was road oscillation, excessive “porpoising” that managed to bend it.
I’ve been carrying an 11.5 camper while towing a 10,000 trailer with the same long trailer tongue arrangement for almost two decades, on three different duallies, a Chevy, a GMC and a Dodge.
Something crazy happened. It isn’t just too much for an F450.