volatile dead elementalist?

Is there some reason I don't find a build like this (except very old)?

I was playing in PoB and borrowed a golementalist build and put in volatile dead with same (modest) gear from my VD chieftain. The result has much higher damage than that chieftain, though possibly less survivability. However, it does gain Primal Aegis and 9 golems as meat shields.

Is there a flaw I'm not seeing, or is it just that other elemental skills do more damage? Something else?

I really like the seeking projectiles and the 1-button play.