Highly unlikely, and like you said, if a black hole is needed, the closest one is 1600 light years away. Something that won't affect us. I also wonder where all the water just pop up from? Conclusion, this is bogus.
Actually everything he says makes sense, except the issue with pair production.
Hydrogen and oxygen atoms would be produced by this, so as earth grows water would be produced.(along with other elements/molecules)
But when asked how pair production would be able to only create matter, he doesn't really answer.
(just read the comments on the vids, it's actually quite funny that he sometimes writes like a 14-year old who loses in CS,
writing whole sentences in caps etc)
He probably will never answer the question how pair production creates matter, since it creates pairs of matter and antimatter particles(hence pair production).