Capture and hold is really a simplistic measure for something more complex than bare attrition. That it is being applied for this scale and scope is the problem. Capture and hold makes more sense in a larger map where it applies to overall victory (the operational level). An entire battle would be spent in capturing a point (or to put it more realistically, a base), then a new operation would have to be formed for the next objective. Capture and hold (as defined in STO PvP) as a tactical objective makes little sense unless its on the ground (or in a base) and with troops.