I agree with this assessment. My consulting business partner and I are in the process of moving a bunch of applications from an old deployment managed with Ansible on EC2 over to an ECS deployment. We're doing this app by app, and it's taking a while. The last two apps we both moved we were able to point the model at the appropriate repository and aws account and it was able to execute the entire move on both of these _in one shot_ with various CLI tools. That's not a parlor trick.