Yes, correct. We switched to using sockets for PHP-FPM by default with Virtualmin 7. However, changing mentioned by Peter option on the templates will only affect newly created virtual servers.
If you need this to be applied to existing virtual server, you would have to toggle PHP execution mode away from PHP-FPM and then back (for the given, existing virtual server), as doing it will regenerate the configs and use defaults set on the templates.