I know that you have attempted this a few times. However, I really think that Hive needs to have a "Master/Super Admin(s)" for the entire organization's workspace to help alleviate someone creating a project, changing the "make projects public by default" and removing access to the master/super admin(s) for projects created. A master/super admin should have FULL control over the org's workspace to help manage project access, settings and other issues with ease. Other PM systems (i.e., Adobe Workfront, Asana, etc.) offer this functionality, and you should, too. You need to make this a critical high priority functionality for your PM tool, and it should be pushed into planning and development ASAP.