Enabled (no Delete) GTM

Good day,

I was wondering if the VS discovery is set to enabled (no delete) what does it mean?

From what I read and understand:

A wide IP and pool exists that points to VS of two LTM's located in different DC's. An admin by mistake removes one VS. That VS will not be removed from the wide IP pool configured on the GTM's?

So enabled no delete = object remains in DNS config and can't be administratively deleted on GTM?

OR

enabled no delete - object remains in DNS config but can be administratively deleted?