Conceptually the difference is intended as:
- Everyone should read the Quick Start. It defines the terms and components of Keyboard Maestro.
- Getting Started is for people who want to read first before diving in.
There are two kinds of people who build IKEA bookshelves, people who read instructions first and people who pick up the screw driver first. Getting Started is the instructions for those people who want to read them first, or for those people who can't figure out where the bits line up later.
The Quick Start is more just to get everyone on the same page in terms of what they are talking about.
So the idea then is that everyone should read the Quick Start and do the Tutorial, and it should take no more than a couple minutes. Originally the Quick Start was a built in page in the application, and maybe it still should be.
This is also why the first two steps of Getting Started ate in fact Read the Quick Start and Do the Tutorial.
Not that I would necessarily say the the documents are doing their jobs as well as they could, but that is the design goal.