Wyll.I.Am has never been so useful. Especially that I'm not playing a CHA class so passing those Persuasion checks would've been tough.

>>542208010
The Displaced Beast is only there to lead you to an open area where the trigger for the cutscene lies. The ambushers are standing on the floor above in a half-circle formation. If you passed the Perception check they become visible and you can jump from the steps where the Beast originally was to their floor, effectively landing behind their backs. Which is super useful if you just want to surprise and kill the whole team, but useless if you want to hear his side of the story first.