That was a blanket nerf, all heirlooms lost damage. It's a static +3 damage +1 speed now at MW.
So no discrimination of flameburgers there.
ahah this is what I thought too before the revelation that the other 2hs are sheathable? (is that really true tho?)
It hasnt really bothered me too much while playing tho, even wearing mail armour i dont get shot as much as I thought I would without a shield. (with this admission id like to say that I strafe a lot - just in case ranged get buffed bcos of my ramblings)
Of course I would like to see a dmg increase for the flamburge - I use it - but I really havent noticed the difference.