Bond of Stone Mastery Isnt Really "Stone" anymore

In the patch that came out today, Bond of stone no longer doubles its damage reduction with nearby allies anymore. The damage reduction got a 1% buff (to 4%) and it made the only real effect is to suck the damage from an ally. But now you don't really need to be in a duo lane to take it anymore.

The reason you take it as a bot lane tank is so you have the bonus damage reduction and the damage takeaway from the ally. Now we only get one effect and it is relatively the least effective of the two. The ally protection is nice but the best thing was the doubling of damage reduction. Now that we don't get it, there is hardly a reason to go bot lane with it anymore (like it appears to have been intended).