This is a problem, that only the view creator can modify the saved view. In the cases when the creator is not available or left the company, the saved view can not be modified and deleted.
Thank you very much for submitting your Idea and we do understand the need for what you are requesting. the Good news is we have schedule Dev to allow a person with the Admin role to take ownership of a Saved views and then you can manage or delete it at your discretion
Model coordinators need this to be able to clean up users who create and share saved views. Since you cannot see who created the saved view there is no way to productively clean up without mass emailing the entire team.