They guy said that while he didn't say that it was definite proof that the certificate was legit, that to his belief they had not been fabricated.

So, he didn't say "It's real." He said "It's not fake."

This shouldn't be news to anyone, but the guys at Fox News are pretty shitty "journalists."
The reason that I used a link from them is because I thought that you'd be more willing to take their word for it, based on your demographic.
I was wrong.

Still, it's not like Tremblay is supporting what you're asserting. He's just claiming that he was misquoted.
He's probably mad about being quoted by Fox News at all.