Hm. I'll put some further thought towards the structuring, but honestly?
If a few minutes is already too long to get from the detailed "what" to the detailed "why", then it might not be the guide for you.
I'm not saying you're wrong, I simply don't see a way of improving the above as of now, and I kinda fail to see the bigger "why".
The answer to why is who. Who is your audience?
All writers disagree with editors. All writers need editors.