Pretty sure Bruk just don't want to admit that he has no idea what's going on in this sidequest and is just along for the ride (and the prospect of recruiting more heroes for his ragtag hero group of heroic misfit heroes).

Ooo, Heroes vs Ghouls fight now? Probably not, but they were causing this kind of disgust in people who saw them for the first time.

Burk doesn't want to explain something boring

I'm going to guess... Big pig production factory/person

Look, behind you! A distraction!

Burk's understanding is pretty much limited to something needing hitting,

@David Argall that's what he wants you to believe, but once already he let slip that he knows very well the mechanisms of magic, much more than any other character who has appeared so far

Lucky Burk :D Distraction occured just in the right moment :D