I don't see why you couldn't do both. Hero's Journeys are often all about self-discovery, while adventure is happening left, right, and center. It gives depth and complexity to the character, can go a long way to explaining the initial Refusal of the Call, and can support the evidence of her transformation into someone to be reconned with.If truth be told I never thought about it in that way but I can see why the story would come across that way. I largely saw it as a hero's journey adventure story.