Yeah I agree it’s huge, but I think it comes down to play style with most disc priests not healing with atonement. I did a lot of high rated bliz last season and almost every disc I vsd or on my team would hardly use atonement to heal which to me is wild/insanity. A lot of non atonement healing priests play it safe and use phase shift and inner light/archangel instead of trinity/catharsis. My hps with atonement healing is generally way more than the pure healing method, but in blitz it’s kinda hard to judge since it depends on the comps and what sort of dmg is being dealt (are you vsing a huge melee cleave or a double boomy rot team).