Here is why you should not complain about balance:

So long as you have room for improvement in your play, and the enemy does as well, you can compensate for imbalance with skill, by improving. Balance does not truly effect the low and middle tiers of gaming in the same way as the top. Until you are at the top, you should focus on countering and playing around obstacles, to improve, rather than dismissing your losses as due to balance. You are not so good at the game that you cannot get better, and if you can get better at the game you can overcome the obstacle which led to your loss.

Even at the high levels of play, each individual only has individual, subjective and anecdotal experience, which can cause bias and colour their perception of balance.

The goal should always be more pew pew, less QQ.