I have a beef with the article's definition of "balance", but you are describing balanced matchmaking, rather than game design. Important, and a hugely difficult problem, but a different thing.
I thought it was obvious from my response that I did know that I was talking about a different thing. In fact I was intentionally pointing out that I was thinking of a different thing.
My point was that when I hear the term "balance" in regard to gaming, I'm thinking about the relative equality of skill of the teams, not things that relate to the game design itself.
In that case we need some new term to differentiate the games of "Starcraft II" and "Starcraft II, but without Terran and Zerg as viable options for competitive play."
