Thanks for clearing that up Valefort.

I feared as much.
I think this discourages people - certainly me - from playing the newly reliable Bear Warrior for any reason but RP. Ten straight Barbarian levels are simply better than it since the last improvements to the Barbarian class.
Your improvement of the BW re. weapon damage transfer addressed the Troll killing issue, but ultimately still nerfed the class since it replaced the earlier +2d6 slashing damage the BW received (at least on paper; they might have been bugged and not have worked IG).
In the light of this, and like Acroma666 has suggested before, I would like to suggest improving the BW class with one more trait (or, even better, a choice between several). All of the below suggestions, apart from perhaps the last two, are selected with an eye to RP compatibility.
1) More claw damage: +1/+1d4/+1d6 Slashing (depending on Bear version). Bears are strong and have lifelong training in using their very sharp claws. This would simply make up for the damage nerf mentioned above: the best weapon damage is 1d6, so with this claw damage improvement the BW would be back to where he was in the wiki.
2) The BW gets a +4 to his Knockdown modifier from the start that stacks with the Improved Knockdown bonus: this would accurately reflect his large size, which currently is merely cosmetic.
3) The BW gets Dire Charge and causes some bleeding damage. These would be relatively low-power additions but at least make the use of charge, one of the few style options of the BW, a little more worthwhile on occasion. Knockdown would probably still be better than Charge in most cases at the beginning of battle and bleeding damage is of course useless against even small DR.
4) The BW claws have a chance to either stun or daze or at least cause fear.
5) More or even all weapon features transfer, incl. the material attributes (Cold Iron, Alch. Silver). The BW would still lose some flexibility by not being able to swap mid-rage, but this would also make up for the nerf.
6) The damage properties of both weapon AND gloves transfer to the claws. This would help make up for the damage reduction at the cost of an item slot.
I know there is a lot going on, and probably you feel a sense of 'done and dusted' re. the BW class, Valefort, but I still hope these things can perhaps be considered in the future.