I think Susman's Snap Judgment is just that. I've seen a couple of trailers for the series, and I, too, am intrigued by the trailers and I will definitely tune in to the series. Abrams is known for building a positive buzz for his projects (see Cloverfield) so this early in the game maybe he just wants it to seem jumbled so he has that much more to reveal once the series premieres.
And yes, this whole thing might've been done before with The X-Files (which I love) but there's a whole generation of people who haven't even seen The X-Files and probably never will, so there's a huge young adult and teen market to grab with this show, as well as grabbing fans of The X-Files who've been yearning for something else like that show for years now.