I saw that show, made me cringe when he said it.  He was a Maine state game warden, not a ranger, fyi.
I was once working a booth at an ATA show, had a bow company rep tell me that "their" bow shot flatter than other bows at the same fps...  I said to him " I'm not a rocket scientist, but, there is no possible way any bow design has any influence over an arrow after it leaves the string"  He quietly walked away...