Hub site names must be unique
Enforce unique names for Hubs. Under Hub Site Settings, site admins can rename the Hubs and use an existing name. This is problematic. Other sites that want to associate themselves with the Hub won't know which Hub to pick if they see more than one on the dropdown. It also presents other issues on reporting, etc.
Thanks for your feedback! Although we appreciate your time and effort to give us this feedback, it’s not something we’re planning to do right now.