Additional crafting changes went up on the PTR last Friday night and the bulk of these seem to be tweaks to 'classic' recipe ingredients. The key villain in this wave of changes appears to be flask of mojo (and its big brother, but for some reason not its powerful brother) with a side of gorilla hair and long elegant feathers. This seems like a strange change to be making in 4.1, I was expecting modifications like this in 4.0. Perhaps it's just that recipe revamps didn't make the Cata cut for release. The bigger question for me is why just three weird components? Why not the whole enchilada?
For example, in Alchemy alone I can find at least six oddball ingredients for potential extinction. I'm talking about funky bits such as Sharp Claw, Large Fang, Ichor of Undeath, Black Vitriol, Heart of the Wild and Blood of Heroes. None of these are herbs and often cause extra hassle in making their respective potions. On the flip side, these ingredients can lend a certain RP "flavor" to their recipe. If we weed them all out, aren't we killing some of the lore that was put into our professions? C'mon, what's a Big Voodoo Mask without any mojo??
If I were making these changes, I would probably wouldn't have given mojo the axe. I can sympathize with the gorilla hair, which was only in one recipe (that wasn't monkey themed). I think Black Vitriol could go as well, a one-off item with no significant RP value. I also find Heart of the Wild to be a weird item that looks like an herb but isn't (I regularly confuse it with Khadgar's Whiskers). And Blood of Heroes may have outlived it's usefulness since it doesn't require meaningful effort to collect anymore.
But I like other ingredients like spider silks and specialty leather/cloth/metals which give added flair to our crafted items. And I think having some unusual ingredients (like deviate scales) allows crafters to deal in exotic items if they want to put in the extra effort to acquire the mats. So there's a balance between a useless and onerous material and one that provides market value and immersion. If time is going to be spent reviewing recipe materials then it would be helpful to look at all drop ingredients, not just a few here and there.
Even more importantly, if we're going to be reviewing classic tradeskill content in any way we should be PUTTING BACK the lost recipes. I find it particularly ironic that Shadow Oil (still missing from Raven Hill) had it's fadeleaf removed and yet the recipe itself is still unavailable to crafters who didn't learn it prior to the Shattering. Restoring missing recipes is a higher priority than fussing over ingredients guys!