Originally Posted by
Jackstraw
Once more.
It's not a matter of not being able to, rather, not having the infrastructure nor the possibility to mass produce it and, since the majority of it all has been left to AU Draenor, easily access and use it.
The possiblity is there, the design is an iteration of Blackfuse's creation and surely some engineers came over to Azeroth amidst all the clans. However, the Iron Horde had it all in place for their machines to be built and shipped to wherever needed. At the moment the only thing even remotely Iron Horde-ish is a single aircraft in Nazmir, meaning it either got teleported, which is unlikely, or it has been produced, so it's proof of the technology being used.
However, the fact that there's no reasonable place in Azeroth the Horde has access to where there's enough logistics and resources to come even somewhat closer to Gorgrond's Pit, Iron Docks or Foundry is exactly this: a fact. The aircraft, much like a lot of things in BfA is an asspull with small relevance but a lot of dumb implications.