Trying to remember from PC version, I feel it was "nerfed" or just changed about the same time they "nerfed' Arcane orb-Frozen orb. Just don't know what was changed.
Edit: Oops, there it is. The AoE damage was nerfed on the "extra" shields from 333% weapon damage, down to 170% weapon damage. The initial shield was buffed. So it was a pretty big nerf to AoE, but a smaller, but still good boost to single target DPS.
And holy shotgun is a pretty good build as well. Takes a FotF, but after that, it's easy!