From what i could gather, the procrate is fairly low, ranging from 200-500 damage total, not sure if that is worth giving up your HS in a world where defensive CD's and selfhealing are still rare.
Okay, what is the Meta pet for a Warlock in TBC?
A dead one, because 0/21/40 is the Meta spec.
https://tbcdb.com/?spell=35700
As seen above, your regular warlock does not use a pet, the only spec that actually does use one is Demo and guess what:
https://tbcdb.com/?item=25469
Considering that no one that actually does want to min/max will be Herbalism, that logic has a massive hole.
Is this another instance of you just wanting to be right for the sake of being it?
Because common sense suggests that this discussion is obviously about min/max that the community at large will do, people won't be rolling Herbalism to use Fel Blossom, they will roll LW + X (=With X being Tailoring, Blacksmithing, Jewelcrafting or Enchanting and maybe Engineering).
This item is for people to min/max that already made the choice to not min/max (which is obviously a contradiction), not to mention that it absorbs less than HS heals.
Why would you pop a defensive consumable like this before the pull?
Wouldn't it make more sense to use when you need it?
Imagine running up to the boss, popping this item, not taking any significant damage within those 20 seconds, then suddenly dropping to dangerous health levels within the next 2-3 minutes and realizing your healthstones are on CD for another 2-3min.
Charged Crystal Focus restores health.
Healthstones restore health.
They do the same thing.
Fire Protection pots absorb fire damage.
Shadow damage protecion pots absorb shadow damage.
They do not do the same thing.
The point is that those are so insignificant that it won't spread to the community at large, which i assumed goes without saying considering most people have been talking about how the consumables usage and world buffs in Classic have spread to large parts of the community.
Nevermind that most of those won't even be used by min/maxers because they share a CD with something you can get for free from another class.