my understanding of asymmetrical balancing would be two armies a,b with one having a unit that costs 300 that wins exactly against the 3 units of the other army costing 300 in total. thats asymmetrical balance to me. not one of the 3 units costing 100 beating the unit for 300 which is allegedly justfied because Army A gets a good counter to that in late game.
i dont want both units to cost the same while having the same performance i want the more expensive one to counter a unit that is cheaper and it is supposed to counter, is that really so hard to understand?
you make assumptions about 2 units battling in a vacuum. yes, thats something i dont understand