They'll be fixed in the next build. I brought the issue up on Something Awful about creatures with imba damage, and Josh has been tuning creature attacks down - as they were not tuned after the % DR removal.
Dual battle axe wielding rogues were something that internal QA used to do, that resulted in the nerfing of the battle axe crit mult and some rogue stuff. I actually don't like slashing weapons in the beta, I prefer crush and pierce, or best/of weapons. No character armors are vulnerable against slash and many of them have higher DR against Slash. A majority of the creatures are also resistant to slash, but pierce and crush seems to work very well against most things.
The battle axe crit mult would probably offset that in many cases though and it be good against Lions, Spiders and Wolves, at least.