I watched that twice... I still don't understand what he's saying and I'm not sure he does either.
Satoshi.... rofl
He's describing signing such as is used in https ssl certificates. Bitcoin signing is completely different. He knows the difference, but someone called his bluff and he has to create another lie to cover it up.
As long as he has enough shillers to follow, they will spread every of his messages.
Either BSV goes zero, its network becomes unoperable or Craig goes to jail. Then eventually, the story of BSV may end.
But it's a part of bitcoin, too, since it's value practically comes from bitcoin through the chainsplit.