In an organization, the members can create private or internal repositories only. Administrators don’t want to make it possible to transfer a repository from an organization to another one (because access management is possible only on the organization they control, not the private user account space for each member).
But in the end, if a member create a repository in the organization, it should be possible for him to delete the repository he just created, but not to transfer it since it’s an intellectual property of the organization.
For what I see, I think currently it’s only possible to apply those two permissions together, or remove them together.
I don’t know if it makes it more clear?