Why Disabled Antivirus Is Not An Important Message In Activity Center

i did a registry cleaner(to erase some entries of a bad uninstalled software) (with comodo registry cleaner) after restart i notice that the antivirus and firewall icons on the clock area were gone, after couple of restarts they came back.... now the activity center flag is delayed (bt now i dont remember if it is normal or not) and once the flag is there i test the activity center by disabling firewall, then the flag come out with a red "x", but not with the antivirus.In this picture, as you seei have disabled both, antivirus and firewall and it only shows the firewall as "important" message.should not show the antivirus status as an important message too?