Monsters are invincible/Algorithm question???

In the Algorithms FAQ it says that monsters use a slightly different formula for magic (it's basically a 50% increased damage).

Here it is:

For magical attacks made by monsters:
Damage = Spell Power * 4 + (Level * (Magic Power * 3/2) * Spell Power / 32)

Tho I don't see anything related to that in C2 docs, is that information erroneous?