Sytem's Events cannot work if we select the method "none"

I develop my own solution to display Komento in my own CCK.
I use the function KMT::commentify to display all comments so i choose in my configuration the trigger method "none".
But if i choose this option all the interface on my plugin "onAfterSaveComment,"onBeforeSaveComment"...
I saw in your code classes/comment.php line 1510
if ($config->get('trigger_method') == 'joomla') {}
I understand for the display but not for all other triggers .
I like the flexibility you offer in your solution but i don t understand this limit.