To back to the original topic, thralls in general are leveling slower on in AoW.
I cleared the steps to Klael’s Stronghold on live and testlive. On live the skeletons gave 169,011 experience and on testlive they gave 83,277.
Thugra and cannibal brutes only take 1/3 of the experience to level of the current top end thralls so they will level faster even with the 50% experience nerf in the Age of War.