The debuff alert is only shown as long as I have one of the debuffs mentioned in the screenshot. And the aura is THAT big so that there is not the tiniest possibility I screw something up. ;-)
The aura that tells me that Cleanse is on CD does only show while... well... while Cleanse is on CD. Except of heroic Spine that is a very rare occasion at the moment.
The aura for the Divine Purpose proc doesn't show that often either and when it does it is gone almost immediately because I use the proc. ;-)
Only the auras for Holy Power and Holy Shock off CD show more or less all the time. And I like it the way it is.
If MadCV doesn't like the appearance of my auras he can change that himself. The important thing here are the triggers not the appearance.