TL;DR:
There were several unique elements/parts of the intended design, even back then. But what you’re arguing, wasn’t even meant to exist at the time. And it didn’t.
Long version:
No, I got that from play the class from Vanilla to Cata.
There was nothing unique or different about “Survival” back then. It might have just been called “Marksman 2”.
I don’t recall you mentioning this the last time you brought up the argument of RSV just being MM 2. Perhaps you did and I just missed it.
But either way, this explains so much as for why you bring this argument up.
It also highlights how you don’t really know what it is that we’re after.
Just to make it perfectly clear…looking at a brief summary of the evolution of talent- and spec-design over the expansions. For the Hunter class.
During Vanilla - WotLK, we did not even have specs. The spec differentiation you’re talking about/looking for, wasn’t even meant to exist at the time(and it didn’t).
The only thing we had during this period, were Talent Categories. Yes, they held the same names as the specs we have today. But Talent Categories have NEVER been designed with the idea of a completely unique and defined playstyle in mind. At least not on their own.
Talents/talent categories have always revolved around the idea of further exploring what your preferred part of the class was. Even in the beginning.
In Vanilla and TBC, there was only the core playstyle of the class which consisted mostly of ranged abilities for your core gameplay. Talents at the time only added to that core. There was no intended design to allow for you to opt into a completely unique playstyle.
In WotLK, they added some defining abilities at the end of each talent category(reachable once you got to a higher level). These abilities and effects served as the first step taken towards allowing for us to further define our playstyle on a more “tangible” level.
Going into Cata, this was when they first added what we today know of as “Core Specializations”.
The thing about them for the class back in Cata though, was that they still did not intend for you to opt into a completely unique playstyle. What you could get from for example Survival(the spec) in Cata, was basically the same things that you could get from the Survival talent category we had in WotLK. Just that some of those abilities and effects were now mandatory. Not optional.
And if we look at MoP/WoD, they even removed the idea of having talents that focused specifically on further exploring your chosen Core Specialization.
Talents for us Hunters, were meant for the class as a whole. For the most part(WoD).
The actual Core Specs themselves which we had back then, they were different. They focused on different themes, abilities and effects; different mechanics.
But the argument of saying that they weren’t completely unique(like what we see with Specs nowadays) in terms of how the class played overall does not hold up as, they weren’t supposed to.
In fact, it wasn’t until Legion that they decided that Specs should completely define your entire playstyle.