I ticket a GM about this and they personaly weren't aware of this situation... but said they were going to pass along the information. I dunno if it's a fix in 2.3.2, I haven't seen it listed there

I didn't go to SFK until level 25 becuase the quest to kill Argual was listed as level 24 or 25. and a lot of the mobs didn't give me xp when I finally did go.