First and foremost, to address the point that you had regarding wrestling "dodging" an attack, this is only partially correct, and is merely a description of the broader mechanics at work. In combat, the chant to hit or miss your opponent is based on comparing the weapon skill of the weapon you are currently using with the weapon that is being used by your opponent. As an example, if you were holding a long sword, and your opponent is holding a kryss, the combat system will compare your swordsmanship skill with your opponent's fencing skill, when determining whether a swing you make will hit or not.
As mentioned before, this function of comparing combat skills to determine whether you hit or miss takes into account the weapon that you and your opponent are holding, however, there is a special condition that also must be accounted for as well: when the player is holding no weapon. In these cases, a player who is holding no weapon must also have a skill to compare to a combatant, which is the wrestling skill. Thus, the same behavior of determining whether you hit or miss an opponent can be calculated when your opponent is disarmed, just as it occurs when they are holding a weapon; the calculation just accounts for wrestling instead of a different combat skill. The result of this is that an opponent who has a wrestling skill that is equivalent to yours can "dodge" your attacks, however, this is not a unique ability given only to wrestling, but is an inherent property of all combat skills.
Second, the additional functionality given to mace fighting is part of the February 2, 1999 patch which states the following:
This line item is the only specific change to a weapon during 1999.[*]Mace weapons now cause stamina loss and extra damage to armor when they hit an opponent.
Finally, nowhere in that patch, or any previous patch, were any specific changes to swordsmanship or fencing mentioned that gave them the ability to perform paralyzing blows or concussion blows. However, these changes are covered in great detail with the introduction of UOR.
On a side note, you mention finding evidence for your position on specific mechanics. If you find information dated from 1999 that you believe confirms the existence of stun punch, disarm punch, paralyzing blow, concussion blow, or crushing blow, then it would be in your best interest to post it. If the information is unambiguous and directly points to the existence of a special hit, then a more detailed investigation and patch to our combat mechanics would be needed.