So, the way I read the mission statement is: We [Radius Networks] firmly believe that an open specification would help everyone, and we [Radius Networks] want to do it right. This is simply the proposal, now we [Radius Networks] would like feedback from the community.
Do you have examples of organizations or communities that have good answers to your questions?
You're asking for a community RFC on a spec, but have not specified how the good ideas will come forward, who will be voting on them, etc. If it's just your company as the "voting party," it's not very open either.
This just leaves the Radius Networks spec for beacons.
The short answer is that sitting on a governance board takes time and effort, and mobile developers at large aren't really convinced of the benefit (relative, to, say, the Debian advisory boards).
To overcome this you'd need to recruit from people invested in the problem. Probably your competitors.
This is the link to the NWP: https://www.bluetooth.org/docman/handlers/DownloadDoc.ashx?d... (Requires login and you need to be a Bluetooth SIG member)
Edit: This may be a better link as it shows the dcouments available in the Bluetooth SIG. https://www.bluetooth.org/en-us/specification/reference-publ...