Git Town is meant to be a wrapper around Git but an extension. The commands it adds are suitable for particular workflows where you would otherwise be running the same series of git commands. It prints out all the Git commands it runs and the output of them.
I think Git Town is best used only after someone learns Git (and has possibly run through the workflows by hand).
This tool is not meant to replace Git. Each command runs a series of git commands (all of which are printed out) which may be different based on the state of your repository. I would advise against using Git Town without understanding Git.
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
I think Git Town is best used only after someone learns Git (and has possibly run through the workflows by hand).