No. You're literally delusional. It never existed. Blizzard reused skeletons then (a whole lot, too), and it does so now. In fact, they're putting more work into mounts than they used to in the past few years. If you hadn't noticed yet, the majority of the animations on the ravager mount are modified to be smoother and more up-to-date (which was a lot of work), and then it also has quite a few unique animations altogether.
And "it's my opinion" isn't some infallible defense from scrutiny. It may be your opinion, but I'm allowed to tell you your opinion is stupid if it's literally from a position of ignorance and bias. "My opinion!" doesn't make your posts some criticism-free zone.
If you don't like that. That's too bad!