They never specified if it’s Niuzao, and all things considered, it would make sense.
But I wouldn’t be surprised if they whipped something out on the spot and forgot about the August Celestials.
Throw in Tauren Rogues and you got a deal.
Well… I also kinda recall the lore of the yaugol being that they were regular tauren before they got trapped on a trip to pandaria and forced to survive and became the bison tauren they are now with a rather creepy addiction to burning…everything. Nothing scarier than a deranged bison guy who’ll set your house on fire, your family on fire, your pets on fire, your crops on fire, your ale on fire, the cooking fire on fire, you while you’re in the stew pot on fire… yeah… had no guilt killing them in pandaria