Summary

With the discovered products feature, we are able to see products that our Managed Accounts have subscribed to, which allows us to understand how they are using their Atlassian Accounts.

Suggestion

Though this is a cool feature, whenever a Managed Account's site is deactivated/deleted, it will keep shown under the discovered products, as well as a product that Managed Account has access to.
This suggestion address the need of removing deactivated/deleted sites from this view, once they are no longer needed to be shown.