I have come to the conclusion that I hate martial artists in general, whether they're my units, or the enemy's.
My martial artists suck because they're so slow so they barely get to do anything, have limited blunt damage options to take full advantage of fighter/martial artist masteries, and are useless against lots of ranged enemies.
Enemy martial artists suck because they somehow always land a crit to activate Posture Breakdown and make my units useless for their next turn on top of having stupidly high block that you always have to make sure you have some way to deal with in your team's loadout.
I would not care if there are no martial artists in Banished Children.