It's designed for each nation with cheap holy troops. Mictlan actually needs F9 blessing to survive early phases of the game. Even more so if he starts near Ulm.
F9 blessing solves mictlan's early game problems; but i daresay quickened jaguars and some imps would make short work of "let us all run away in our extremely heavy armor" ulmish troops.
even a death blessing would work against ulm. actually, pretty well anything would work...