For one I could have cast Holy Avenger 3 times during the better tries but instead had it delayed as a defensive cooldown. That is a dps loss of about 5k and does no bring significant boost to my survivability as I only cast my defencive cooldowns once each. These should be plenty for heavy handed / unarmed phases and could probably be used in the opener to make boss damage nonexistent until the 1st Soul Cleave.
My Sacred Shield uptime was right up the ass. 50%, that's incredibly low when 100% is possible.