It is currently possible to configure which email address gets sent notifications on an organisation-by-organisation basis. However, when CircleCI sends an email about access being revoked to a repository, it doesn't follow these settings. It just blindly emails the primary email address of the github account, regardless of which organisation the repository was in.
I'd like it if "access revoked" emails were sent to the same address as "build failed" emails.
(I mentioned this problem in a support ticket and was told it's a feature, not a bug and so to raise it here.)