Have I confused the logic of host_restrictions?

group_vars/all.yml

@@ -46,9 +46,10 @@ xdg_data_dir: "{{ ansible_env.HOME }}/.local/share"
 xdg_desktop_entries: "{{ xdg_data_dir }}/applications"
 xdg_desktop_icons: "{{ xdg_data_dir }}/icons"
 
-
 # aptitude cache, time in seconds
 aptcachetime: 3600
 
-
 local_user: "{{ lookup('env', 'USER') }}"
+
+# override, testing
+host_restrictions: true