us.battle.net/wow/en/character/madoran/Anario%C3%B1/advanced

Is it worth losing the 4 piece in place of Warforged Pauldrons of Violent Eruption upgraded 2/2 ? Im just curious. I'm currently using a crit build and it seems to be working out real well with the mitagation over mastery. Just unsure if my rage will suffer in moments of need with demo shout. All in all I'm just looking for a second opinion. Sorry cant link yet as I'm new to using this forum