I find this quite interesting for a seasoned divine player. Do you mean you can't pay attention to your surroundings or can't see what's going on with other people and navigate at the same time ?
I think the more you play and become more comfortable with your keyboard, targetting, selecting and better with evaluating classes defense and hp, the less you have to "watch" the bars.
It becomes more like " peripheral vision", just something you know it's on the edge of the screen, and you can notice any change or drop immediately ( unless you have too much clutter, I find numbers/percentage on bars distracting too ) without needing to focus less on your movement, where your mouse is or whatever.
"Hjeal" sense, hitting f1-f6, then your appropriate shortcut for particular spell/ability.
Raids need more attention of course.
Do you use shortcuts or/and play some fps games ? Too much clutter on screen or super high resolution ?
Divines/arcanes/roles with any responsibility are more demanding on "manual" skill/awareness/focus understandably.
Please don't take it as criticism, excellent post as always, just some thoughts
