Hold your horses Granny, I think Al was trying to make the point that a photo is no more trustworthy than people's memory these days, because photos can be edited. I don't think Al was being facetious. Even the seemingly childish remark about the black jacket serves a purpose, I think. If Al could prove he really didn't own a black jacket, that would disqualify the photo as genuine, regardless what he remembered or not.
But I agree that the analogy is wearing thin. It's point was to assert that eyes are superior to cameras, and that since cameras are designed by intelligent beings, the more so eyes must be. Flawed logic, but relevant to the discussion.
"Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science." - Charles Darwin.