She did do the wrong thing and she was scared and she did runaway from her problems rather than confront them. She was being a coward, by not facing them, but that doesn’t mean she embodies a coward. She did one cowardly act.
August said that “You’re our only hope” and Emma said “Then you’re all screwed.” She has the ability and the facts to believe that everything is real, but she chooses not to because she’s running away from her responsibility. I am not saying she is the ultimate coward, but that she refused to do the brave thing. If she said, “Fine, I’ll confront Regina, I’ll destroy the curse, I’ll bring back everyone’s happy ending.” You’ll say she’s brave, right? Well, she didn’t say that. She, rather than face Regina to take back Henry, she ran away. That was a cowardly act. I didn’t mean to imply that Emma embodies a coward.