i dont care i have uw, but it would help now UW sk/pal progress as a tank
Sounds fine, I don't think anyone would be mad if all the anger augs opened up to Knights. I don't think it's going to make them OP to the point where people want to ditch their current tank and reroll by any means, but there's no harm in helping the lowbies out.
Would also consider adding them on to be able to use Angerbomb as well. It's more of a pulling tool than a keep-agro tool, although it doesn't hurt. They may be able to now, even though they cannot equip it. Can you click class specific items from a bag you cannot equip if they do not have the "must equip" tag? It's so glorious in the t7 mini for pulling the goblins who have an aggro radius of 1 inch.