Personally I think the reward system is generous. I solo que several times per day, generally I win 1 in 4 with a complete pug. In the evenings I que with my FC members and win 9/10 matches. All in all I manage to maintain a positive win/lose ration, but you would not see me complain if the next update removed all rewards from losing. I know this will not happen, since the losing team still needs their carrot on a stick, but I wouldn't mind seeing it happen.