Yes, I am sure, at least with a game started after installing the 1.33/1.34 patch. Perhaps it is not fixed in a game started under a previous version. The damage listed in the stats pane does not include the Axe Expertise bonus. If you save before a monster (or group) and keep track of your damage, then re-load, put points into Axe Expertise and kill the same monster(s), you should see a clear jump in damage.