initially i beleive bind worked similar to the mobs variant but it was obviously taken advantage of so it was changed to what it is now, same for stuff like enfeeb resistance building not being around until later on for the same reason.
Mob gets to cheat because it doesnt have potentially up to 18 or more players worth of actions it can do at any given time. That said i did hope that they would go look back and bind/break and apply the veil formula to it where you could hit the mob x times before it broke based on users skill and maybe potency