I chuckled, sensibly. I assume that guide (the one on the wiki?) has a perfectly minmaxed savescummed Aura or just got real good RNG. The quest giver pretty much tells you Whiteoak is tougher than the demon.
It was probably written with the assumption that one was taking it on at the correct time, and not prior to when you even got the quest telling you what it was (and not on nightmare difficulty). XD