Eh, debatable. I like it to help reduce Reck enough for Bladestorm, but you are sacrificing Meat Cleave to do that to begin with, and the fight is really an RNG fest. When/if you get Fel Surge really make or breaks the fight for you. I've had a lot of amazing pulls, but I think I've yet to have a kill where everything didn't go wrong.
I know this is a shitty answer, but honestly I long gave up caring about that fight. There's just too much random bullshit with the fight itself, coupled with the random bullshit in Fury, for me to give two shits about optimization.