SelectOne, the issue of ranking is not skewed to losses over wins. It's server related issue based on interference from players dropping in and out, how the game host is transferred and how gameID information is passed on. It affects some games, but it's not something that you could just avoid, if and when it did occur.
Now we've acknowledged there is an issue, and we listen to everyone's feedback to fully investigate and resolve the bugs. Anything related to the realtime multiplayer component unfortunately takes longer to test, and the last thing we want to do is delay releasing the update.
Good news is we're almost ready to release, so that update will be coming around Feb 17th! Thanks for your patience –Lee@SMG