On the original topic: but that's not the créche, that's just a group of Githyanki. Indeed
after you defeat the patrol you get an object that used by Laez'el trigger a cut scene, after that her personal quest is updated with "directions" to the créche: in the mountains after the western bridge.

I'm trying to find that area but I start to think that the conclusion for this quest is in the full release (even online the walkthroughs stop at the cutscene).