I mean that the talent shouldn't be there in the first place - all priests should have the base absorbtion to be those % higher.
Divine spirit - the normal spirit buff should be trained for all priests, and the discipline priests could spec for improved seeing as its the main point for blizzard to have a disc priest in the raid.
No we don't know if they will make it trainable atm (though I doubt it the way things are going atm). It was just my own idea / dream
6% is fine, think its what it has atm.
Same goes for penance and grace, anything that makes it usefull abit faster and for a longer time imo.