Obviously these were introduced to use only Outlands herbs, so that's cool. But I'm confused why they'd cut down the damage on a flask like Supreme Power, and then put out flasks like these, which have a higher amount of damage. Though to be honest, I guess it's balanced by just having the damage in a couple damage type subsets.
For Affliction locks it looks like Pure Death will be great, so I'm jazzed. Gotta start saving up those fel lotuses and mana thistles now. Too bad it uses so much nightmare vine - those tree elites in Skettis don't drop that when you skin them, so it looks like actually hunting in Shadowmoon Valley is back in my herb run.
But really, they could have avoided all this by just changing the Supreme Power recipe, so why not do that? Change black lotus to 2 Fel Lotuses and you're done.
The few +holy damage effects currently in game don't add healing of any kind, don't think this will be an exception. "Healing" is an entirely different school of magic even if the spell effect is treated as holy or nature depending on the class casting the spell. Otherwise items that add to +healing only wouldn't be universal for all classes.
I'm sure it's the same people who forgot that the majority of warlocks use both fire and shadow, immolate being around 15%-17% of your dps in most of the standard builds, which devalues the 54 damage from soulfrost a fair bit (it's equivalent to about 48 +dmg, if I'm remembering right) not to mention the entire shadoweaving set and shadow power pots (adept's isn't good for an affliction lock due to the crit.)
However, the +70 flasks are still available, and the mats should go down in price. I have about 50 stockpiled (got a bunch of lotus for cheap) and I don't feel like I'll be missing much using them rather than the +80's. I'm definitely going to offer them in trade to any of our mages who want, however, because I know how they feel.
We have one mage that does arcane dps. However, he does AB x 2 or 3, arcane missiles, scorch rotation. So while he loses a little damage on the scorch going with a new flask, it wouldn't be as big as an arcane mage that does AB, AB , fireball, scorch or something to that effect.
Going by the usual pattern, first patch, Binding light will only affect offensive spells.
Then in the next patch, Blizz will fix it to also do healing spells, just like every other spell damage enchant/buff in the history of the game. (Especially seeing how it contains nature and holy which is the two healing categories in the game)
EDIT: And of course at only +80 healing, most would argue, Flask of Restoration is still >2x better for most healers in the game.