I'm like "what the hell is this about penguins from hirelings"... and then I finally look at the post dates...
Yeah, provisioning used to have completely different ingredients. Penguis was an ingredient for purple drinks, though I don't remember which ones off hand. Also, with a handful of exceptions, you could only get the purple tier ingredients from tier 3 provisioner hirelings back then.
If you already knew that, feel free to ignore my blathering.