Brok and his minions as security at the Arcanum

I was re-watching Markus goes pubbing, and I realized that, since Grimal doesn't know who the fuck Brok and his mates are, they must have started working as Arcanum security fairly recently, certainly since D and company where kicked out, and probably after the pubbing audio log entirely, otherwise Grimal should know that Remold 'copulated' as she puts it, and that Brok is his son, and who Spit and Git are when they show up at the pub.