There are still buffs like:
(Whipped Frenzy) 30% Attack Speed for 5 minutes from enslaving Maiden of Pain in Hellfire Peninsula.
(Holy Fury) a 295 spell power buff for 30 minutes from mind controlling Bloodwarder Menders in Botanica.
(Improved Divine Spirit) from alt. Disc. Priest outside of every raid for the spell power.
Sadly, people are going to feel obligating to get this just so they will not look like slackers in their guild raids.
I could go on forever, but this would solve so many problems.