Other consumables that replicate class buffs are weaker and used to shore up groups that lack the class, this is all the more relevant when M+ is such a huge part of the content available and not every group has a warlock - health potions have a sizable market there.
Healthstones are, as far as I'm aware, uniquely weaker than the crafted alternative - which seems farcical in an expansion where we've had CLASS FANTASY thrown at us left right and center, to varying results.
Can anyone actually confirm they heal 25 % on PTR or is this just all speculations
yes the heal for 25% on ptr 50% for aff 75% with reap up
Official Patch notes confirm this now too
Warlock
Healthstone now heals 25% of the user’s health at all levels.
Developers’ note: Healthstones should be more useful at current endgame health amounts.
..then they should have them not share a CD with pots like before .. long before .. and yes I know, it would make every raid want a lock ..
As an affliction warlock I barely need Healthstones. And I never bring health pots to begin with. It would only be better for the other raiders... Tbh I want the raid version to require a sacrifice... that'd be hilarious . With classes that have invis or other ways to avoid dieing on a wipe provide a bonus if sacrificed .