What does everyone think about this game mechanic?

I get the basic concept that when you attack, the amount of dmg done is between 1 and the max dmg, but does every value between 1 and the max get the same weight? If so, then through simple statistics the average dmg is half of the max dmg, and its the same with defense. Personally, I hate rolling for attack/defense. I want some solid numbers that are consistent every time. Maybe a 5% or 10% variation to mix it up, but 100% in the negative direction only? Also through statistics; 50% of the time an attack is above average and 50% of the time a defense is below average. So approximately 25% of the time you get an attack that makes no sense.

So, if I have a high defense unit with relatively low health, it could get killed by an enemy with a listed attack above my unit's health but well below the defense with one blow because of sheer luck? I'm not liking it. The reason I spent resources on the unit is because of its stats, but if the game just ignores them, why bother? This is also a reason why magic fails because the amount of mana and turns you have to spend just to get one attack to work right is ridiculous. Isn't this game called War of Magic for a reason? It should be changed to War of Not Magic.

Maybe they could just change all the stats to the average dmg and let everyone know that there is 100% variation in attack/defense strength, OR (and I like this one much more) have attack/defense actually be the listed stats and maybe add a little variation because right now, this mechanic frustrates me to no end.

Comment away! Contstructive posts appreciated!