I'd say he got off to a bad start.
Frankly, I'd like to see the author come up with a simple black and white photocopy of his actual "birth certificate" which contains those "facts on file", not some stupid "transcript" created in 2007 (as clearly indicated in the date stamp on the face of the document).
The Obama document is not less original than the item proposed by the author to be authentic.
So, what is there to debunk? The guy's looking into his top hat and reading us a Gospel or something. Some might believe. Most don't!
Then you did not understand his analysis.