I have had a go at defining or at least mapping out what the IndieWeb is before here and here. However, you have taken it to the next step.
I liked Greg McVerry’s recent rewrite of the principles, as much for the intent as for what he captures. Maybe that could be a possibility for people? Like WordPress did with GDPR, provide a default starting point and revise it to represent your own flavour?
I am reminded of my many debates and discussions around the notion of ‘digital literacies‘, that what matters is the process. That is why I really liked your closing provocation:

What do you want the IndieWeb to be?

This comes back to your point about building a better web:

I’m not looking for just a “hipster-web”, but a new and demonstrably better web.