You get sef in core vars, not in all vars. seblod need a better router.php, but since Joomla router will be updated in J3.3 (they claim 30% more faster) is better to wait some time to do some updates in seblod router functions.
8 months after the question is asked there still no a clear answer what really the "SEF Content Type(s)" do. Could someone explain the reason for which it is created or for which it exists?