Game types currently include things like FAF, FAF Beta, FAF Develop, Nomads, etc. A lot of people like the current balance of the main FAF game type. A lot of people don't. Why not appease more people by keeping the current FAF game type and adding another game type or two with different balance?
So, to clarify: the current regular FAF game type would not be changed by this, and people would continue to be able to play as they can now.
However, an additional balance team, with a different vision for what FAF's balance could be, could be in charge of a new additional FAF game type, which would still be FAF, just with different balance and maybe some new units. It could be called something like FAF Rebalanced (or another new name if someone has a better suggestion). The point is that it would be an alternate balance set that people could play, and it could start with the current FAF balance as a base and be improved and adjusted over time to become another version of how FAF can be balanced and played.