Were you quoting the correct thread here? From your answer I would say, you wanted to quote the guy I quoted, because you say the same thing I sayobviously you don't understand the system well.
The problem is that those light melee units get pounded upon before you are even in striking range of the enemy.
You could give those units 500% attack bonus and it would not matter much. worse is that abbots destroy your attack power as well, so by the time you get close to those orc deserters your steel sword turned into a rubber one.
In my experience you need ~+100% HP added to light melee units to become comparable to range units. this so they can survive in enough numbers by the time they reach the enemy that they can actually still pack a punch.