Balance is a separate thing to "pointability". I supect that often the two are used interchangeably when they're not.
Pointability is that quality you get with a gun where the weight is not just balanced but concentrated between the hands by light barrels and stocking, and is very much to do with inertia. That's why guns with the same overall weight and dimensions can still feel so vitally different - one can be a nearly living wand which dances surely to the shoulder and chases targets of its own volition, and another a lump of 4x2.
RG