I think a few are missing the point of Akido being the martial art in the episode.
It goes like this-
Eastman is in the garage crying from the stress of his job.
Daughter gives him the rabbit's foot that she'd won that day, so that he'll be lucky & be happy.
Next day, Eastman finds the flier for Akido.
Though not studied for self-defense, when he's being choked from a pinned position by the prisoner, he used an Akido move to save his life.
After losing his family & killing Dallas, he realizes a truth taught in Akido. That all life is precious, & by protecting others, you protect yourself.
He uses the exact same move to get Morgan off him.
He gives this wisdom to Morgan, & even the rabbit's foot.
Morgan finds the way to Terminus, & is able to tail Rick's group without even knowing it.
Morgan finds the map with Rick's name on it.
He let's the Wolves, not only live, but actually saves them by placing them in the car, which enables him to find another rabbit's foot.
He finds Daryl & Aaron, & saves them, which enables him to find Rick.
My take away from the episode, although it's not my personal belief, is that the universe is taking care of those that find true peace. Now, from Morgan's perspective, since walking in the 'Way of Peace', he has been 'taken care of'. Led almost by an invisible hand from place, to the exact next place he needs to be. He's even getting little nods of approval along the way, like map, the rabbit's foot, Daryl. So, why would he feel the need to change?
Morgan, through Akido, has decided to kill no living thing. He makes no distinguishing between friend or foe, good or evil, worthy or unworthy, because once he begins trying to alter his path based on personal bias, then he's off the path.