The RED/GREEN traffic lights show the configuration of a feature (enabled or disabled), but not the current status. Therefore the light is green even if the tunnel broker can't connect or IPv6 is globally disabled.
IPv6 is disabled, but Tunnel Broker is still configured as enabled, therefore its green. In the backend there is no tunnel broker client running...
i matched that behavior to the iphone part in the l2tp and cisco vpn section. There you have also two traffic lights and when you disable l2tp then you disable the iphone section too. In cc the iphone part isn't a real status attribute in its one object but rather a part of the l2tp object: ... 'iphone_status' => 1, 'name' => 'L2TP', 'networks' => [ 'REF_DefaultInternalNetwork' ], 'status' => 1 ...
That explains the behavior. It's first time i see a green traffic light which can't be change, thats why it seemed a bit weird ;-)