I liked the episode, I've been waiting so long to see Morgan, I thought there was a plot hole. I was disappointed Morgan didn't leave with Rick, but everything in the episode made sense, which is a BFD with this show. They leave the hitch-hiker because they're afraid of the dead weight and then then see he's been ripped apart and stop to get the bag of whatever he was carrying. I was also satisfied to see Carl shoot Morgan, he's definitely becoming a survivor, but was humbled when Michonne had to save his ass in the restaurant.
Edit: I'm watching Talking Dead and they explained that producers wanted Morgan to return last season, but the actor was too busy to do it. It makes me wonder if they intended to bring back Morgan in a different manner or if they intended to have it pan out similarly.