Symmetry vs. balance
With all this crap about moving SBs vs. non-moving ones, it occurred to me that many people are confusing symmetry with balance. They think that to have balance, you must have direct symmetry. "This race has a moving SB, make the other races having moving SBs. This race has a torp cruiser, make all races have torp cruisers." Otherwise, the game isn't balanced, they think.
Incorrect. It means the game isn't symmetrical. Balance and symmetry are two different things. You can have an asymmetrical game that is still balanced.