I believe knowing the low level commands is very important. I don't think anyone should use Git Town without learning everything covered in your article. Git Town prints every* Git command it runs and what branch it is run on. That was my first contribution to the project as I wanted to know exactly what the tool was doing.

* Git Town runs other git commands to inspect the state of things (for example: what is the current branch, are there any uncommitted changes). These are not printed but each one that changes the state (for example: checking out another branch, fetching updates, merging branches) are printed