My community management perspective:
Centralized organizations are good for our most active collectively-developed projects, but are of limited to no value otherwise. GitHub was created to democratize FOSS development, and part of that system is allowing maintainers to host unlimited public repositories themselves on a single site where work could be easily discovered. (Indeed, this is why we standardized on the “openmrs-module-xyz” etc. naming scheme to make OpenMRS repositories quickly findable through search.) Even in its primitive form, our modules directory at https://modules.openmrs.org/ allows a URL to link people to a repo, README, or otherwise direct them to where to find the code.
My opinion: We must become more focused on naming individuals as chief maintainers of projects. If we don’t, we will continue to be stuck in the “if everyone’s responsible for making decisions, no one’s responsible for making decisions” that has held us back for years. When an individual is ready to step down, the repo can be transferred to a new maintainer.
So, in other words, I fully support Burke’s plan. 
(Although please remember a second OpenMRS “Archive” organization means a second set of management configuration, groups to manage, etc.)