Don't panic about this for Samus as an individual. Naked Snake Big Boss put 37% on Mario in a night match last character battle. Ridley might lose to The Boss straight-up, and then RIVALRY FACTOR. Leon isn't losing to Donkey Kong any time soon, but Ada Wong certainly made it look that way, and she probably actually beats K. Rool straight-up. If Wolf can drag down Fox, and Meta-Knight can drag down Kirby, Ridley can drag down Samus. This is the same guy who got 57-43ed by Diablo.
Samus is established enough to not be hurt by a bad game, at least not enough to fall any further than being in the #3-6 overall range, where she was anyways.
--
http://i259.photobucket.com/albums/hh293/zukiraphaera/war-sig-1.png
http://i.imgur.com/597oi.png