As an Account Owner it would be beneficial to be able to see all Spaces. Currently even as an owner, the only way to see a Space is if the Space has been shared with me or by running a report and trying to guess by Activity when new spaces were created.
I do not believe it is necessary to show the details other than the name of the space, and who the space admins are. Possible, the users with access as well.
Logically this could be shown on the Spaces section in Account Management.