For a game to be completely balanced for casual players, a developer will aim for a 50% win/loss and I was impressed (at first) with how close to 50% all of the heroes were. I got the idea last night that maybe they are a little too good and that they are falsified because the games I play show nothing similar to these statistics and I also have a great deal of my games not recording. It seems that a lot of the games not being recorded could be reason for the 50% w/l ratio.
I've played about 50 games with QoT and my games seem record when I play her and I just played a lengthy series last night with sedna, regulus, and TB and only 2 of the 15 or so games recorded. Maybe I'm going crazy conspiracy theory on this one, but something isn't right with their numbers and game stats being recorded and perhaps they are linked... or maybe not... who knows!