I am not sure that I agree with that closure. There have been several concerns mentioned in the talk page and in email threads, and it's not clear to me that the document should be moving forward without an RfC on the whole document. If I had time to look into this further I would be considering reverting Brion's closure as premature in the absence of an RfC on the whole document. Unfortunately I'm buried in other issues at the moment and I would need to do a detailed look at the talk page and its archives before I felt certain about proceeding with a reversion. Someone who has the time to read the talk page carefully may wish to contest/revert the close.
I'm not looking for more reasons to have drama about that document, but I'm very uncomfortable proceeding with that document without an RfC on the whole document.
Pine