Yeah, I usually end up having to DI someone and go out to fix my shield right after Kaz'rogal.
4pc Tier 6 is ridiculous in Hyjal. Our AOE hates doing Hyjal on nights when I can't be there
BTW, the Blessings Deck is amazing for Hyjal. 1 Consecrate will get you fully stacked on the buff, so you'll always have the +80 spelldamage. Your DPS will love you.