If this talent stays, they just need to make it reduce damage taken by 50% while chanelling divine hymn and it will become one of my favorites. I always have bad experiences with trying to save lives and getting the shit beaten out of me when casting this stupid spell. I'd also prefer if they added more ticks to hymn of hope instead of reducing channel duration.
Edit: I picked 50% less while chanelling because that's what the new improved tranquility is meant to do if i'm not mistaken