There simply aren't many decklists to netdeck. The worlds deck 1st place from last year weren't released for months afterwards, and we still don't have the top gencon decks if I'm not mistaken. We will probably see them in a few days now that the top 2 decks at gencon have been restricted to oblivion.
People are somewhat secretive in Thrones, depending on what meta they are from, test in little groups, and then keep it secret even after the tournament they were preparing for was over in case they want to use it in another tournament.
The competitive scene was nowhere near as large as Netrunner, Stimhack League isn't going on with people jumping in and out with various decks, Acoo database and Stimhack aren't keeping track of various top finishing decklists. 2.0 should be different(I hope). Considering Netrunner isn't that big, its not hard to imagine a world where new players would have a hard time finding a deck to netdeck.
^^Beyond the Wall are very nice, Darknoj helped me put together my deck for Canadian Nationals, while making fun of our small turnout of course :P.