If I understand correctly, the issue you see is not related to the AGPL version 3 only but also to the GPL version 3 as the "2. Basic Permissions" are shared between the two licenses. Could you point us to the specific section or sentence disallowing the freedon #0?
Regarding the "enforcement boundary", the AGPL is more there to not abuse the "private use" ("not conveying") of a free software as described here :
In AGPL, You can run the software but if you make it accessible to end-users via a public network in a interactive way, this is considered as conveying.
Regarding the "enforcement boundary", the AGPL is more there to not abuse the "private use" ("not conveying") of a free software as described here :
http://www.gnu.org/licenses/gpl-faq.html#UnreleasedMods
In AGPL, You can run the software but if you make it accessible to end-users via a public network in a interactive way, this is considered as conveying.