cilefen begin to work on the When a content entity type providing module is uninstalled, the entities are not fully deleted, leaving broken references issue. Turned out that a necessary dependent issue is already being worked on so he was able proceed well. I am reasonably confident this issue will get resolved in due time.

This was our first critical office hours. webflo have forward ported a Views SA (turned out that Twig autoescape made short work of the security hole -- yay! so now it's just a test) and even past the office hours followed up with a patch that now passes. I will monitor the issue further and make sure it gets reviewed and committed.