Agreed, it’s potentially a very useful and powerful tool and I have leveraged it to do some bulk mass user/group manipulation successfully but the lack of any documentation on how to use the rest of the functions renders this mostly useless.
The old unofficial community driven alternatives that I came across initially when going down this rabbit hole were infinitely more friendly to use. Most of the procedures eg. just to create a basic group end up being far more complex and requiring more lines of code as everything is manual and based on resource IDs whereas the unofficial modules did a lot of this heavy lifting for you behind the scenes and simply worked just on the Group Name etc.