You know you can still play RSV but you have to break ToS to do it. At least some of us have played RSV very recently. So this isn’t just “fuzzy memories” or similarly patronising nonsense. I can see MoP class design concurrently to the current game and the MoP design not only holds up but is largely better; especially Survival.
As for WotLK: Yes Hunters did flock to the spec in massive numbers in 3.0 and they will do so again in WotLK classic. It’s already highly represented on the WotLK beta.