It doesn't fulfill the fantasy.
It provides an insane amount of LS AND SpV.
It has very good AD slot and cost efficiency
Every other stat about it is mediocre or shit.
If you get down to brass tacks, old WotA had an aura. New WotA had...80 AP, 10 cdr, 20% SpV. Gee, that combo seems familiar, doesn't it? DD is physical WotA. That's it. The passive isn't interactive, and that's supposed to be the selling point.
If the passive is not healthy for the game in any substantial form, then you might as well just remove it from the stat budget and let DD have better slot efficiency