Storm's path was good for aoe damage though, just like delirium, soil, disable, and to some extent divine veil. 10% mitigation in aoe damage may be the difference between people getting one shot or not when ilv is low. 10% mitigation on tank would be really good for smoothing out auto attacks and cleaves, but that also depends on how hard bosses' auto attacks hit. In fights like a12s where the boss auto attacks don't hurt much and cleaves are always paired with tank busters a permanent 10% mitigation won't be as powerful as in fights like a9s where auto attacks comparatively hurt more and cleaves are spread more evenly throughout the fight. Mitigation from tenacity would be nice to have, but nowhere near as good as path/delirium back in 3.x.