Alchemy discoveries

So far I have crafted around 2000 TBC elixirs and potions without getting a single discovery. I know this can be attributed to bad RNG but so far I haven't seen a single TBC flask being sold on the AH or on global either. So my question is; are the alchemy discoveries (the 5 TBC flasks + super rejuvenation potion) even in the game? and if not, is this intentional?

I was actually doing the same and haven't gotten a single discovery. So many elixirs and potions crafted and still nothing.

yep, pretty sure its bugged. so rip.