So people are upset that instead of creating a brand new lore line...they use one that already exists and has a viable explanation as to why it would return? So they should ignore the fact that we are back on our old stomping grounds, and just keep creating new things instead of going back and allowing us to "finish the job". We have never killed Ragnaros. He was not fully summoned, and we just pushed him back to his plane. This is a possible reason for him now having legs, he was not completed properly before. He even says that before you fight him...TOO SOON! YOU HAVE AWAKENED ME TOO SOON, EXECUTUS! WHAT IS THE MEANING OF THIS INTRUSION?. Executus did not allow for the summoning to finish since we were coming for ragnaros.
ZG and ZA are not the same as they used to be, there is a new chain of command in the trolls there. I remember a quest saying something about that ( I think, I might be wrong).
People will never be pleased. You beg for free epics, then complain when you get them that everyone else gets them too. You complain when stuff is too hard, so they nerf it then you complain about it being too easy. Play the game in the way they wanted it to be or don't play. Vanilla was so good because they didn't listen to every complaining noob on the forums. Just because something was too hard for a few didn't mean it had a nerf incoming like it does now. Yes there were nerfs in vanilla, but that was because of mechanics being nearly impossible to beat.