Please keep in mind that we are talking again about the worlds Top Players and that Content should NEVER be tuned around a couple of maybe hundred players.In the case of Normal players in the range of 15-20 keys you have more often than not healers that spend most the time of their globals with healing, because they are not as good as these top players or their groups consist not of top players / heavily meta compositions. At the moment we have a situation were many of the more casual healers quit healing because blizz ramped up healing requirements in Dungeons and Raid (because Top healers were crying that they had to do dmg instead of healing.) and they can no longer keep up with the healing checks and were geting frustratet thus quiting or reroling. Its the normal playerbase, the ones that do keys 15-20 is the majority the game should be balanced around to, not the handfull of top 1% pro players.
Buff Holy Priest. They are balanced in raids but horrible in M+ healing. The dmg talent they got is nice but forces holy priest to sacrafise the already horrible healing they have to become even worse in M+ just to stay competetive in terms of dmg. We need new talents that replace abilities like Prayer of Mending that are only useful in Raids.