Istio tutorial assumes only the happy path in the installation

This steps, should add an alternative path to tell what to do or steps to try if things do not go well. Like I got an RBAC access denied error and I have no idea what to do to keep going through the tutorial. For context I installed Kubeflow, and then started the tutorial. The kubeflow installation got messed up somewhat by this procedure, so my assumption of being a “safe” set of commands was wrong.
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I felt the same. I’m trying to put together a post of where I struggled and see if I can get help from the community as well.