Works fine, thanks for information!
i can almost guarantee this started out as a glitch and classic players were pumped at finally being able to get exalted...so blizzard decided to allow it and give it to everyone... cuz it makes no sense otherwise..they don't even offer any rewards.
I did the last quest few days before this rep change and quest check macro confirms that. However I did not get the reputation after the change, GM also tells me I didn't do this quest. Warning: Instead of running with centaurs I flew there much faster and I think this might have bugged the quest. Now I'm stuck in the limbo, waiting for another GM response.
If you've done the quests, go talk to the Tauren dude in the center of the Cenarion Wildlands. You'll instantly recieve enough rep to max out Exalted.Source: Me, i just did it.
I can't believe this, but somehow I didn't complete these quests back in the day and tried to give it a go... AND IT STILL WORKS! as of 8.3