Bashiok, community manager du forum officiel de blizzard revient sur le Mot sacré : sanctuaire et en gros estime qu’il est bien comme çà !

We think Holy Word: Sanctuary is fine as-is taking all of the variables into account. It is isn’t intended to directly compete with Healing Rain or even Efflorescence, and if we decided that it needed to be, we’d have to nerf Holy priest AE healing in other ways, such as Circle of Healing or Prayer of Healing. If you are casting a heal every single GCD, then there may not be many times you would want to use Sanctuary over, say, Prayer of Healing. But you probably aren’t casting every single GCD. Even on heroic raid encounters there are often periods of lower damage, and if you’re blowing big heals then when you don’t need to, you’re going to run out of mana. But Sanctuary is the kind of thing you can cast during periods of low damage in preparation for predictable high damage in the near future, at which point it can be ticking away while you also cast other AE heals.

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