My understanding is that this plugin will handle the sites it registered on my multisite install. WHMCS created blog id 9. Expiration and payments will be handled by WHMCS
As shown in the screenshot of the whmcs backend the site is suspended. However, nothing happen in the multisite install so the site is still up. http://churchandprison.org/
The plugins are up-to-date so there still need to be some fix for this plugin.