Thanks for the info, but I have to ask. Would you agree that most of that success is due to IP, and not the rules system? So, rather than say "Non OGL games can do great!", it's more of "as long as you have a popular IP to sell the game on."
For example, as is, my system (GEAS) isn't a blip on the radar, and if I did a KS I'd probably be lucky to get 500 backers. But if I had the same system, but set it in the world of Middle Earth, it would be exponentially better.
Then, once you get the fanbase from those IP, it's much easier to get that fanbase to buy other products.