That's not how I would summarize it. OSM is only giving them two options: apply to be treated as an automated sync source, or don't submit at all. They're willing to put in work and care but not to handle all the other complex barriers.
To contribute a bookcase, ask them to create an OSM account, log in with OAuth, and send the edit straight to OSM.
Book corners becomes just a custom view and editor over OSM data, instead of being its own database.
Users are now responsible for the data they submit (OSM already has tools to deal with vandalism etc...).