This is the first faction exclusive class available only for the Alliance players. Paladins in World of Warcraft: Classic end-game were considered as one of the best single target healers around. However, other Paladin specs were not that popular. While Protection Paladins found their spot with tanking groups of mobs across the dungeons, Retribution Paladins weren’t very popular in the end-game. However, Paladins were amazing levelers and World PvP participants due to their amazing utility skills and ‘oh shit’ buttons such as Lay on Hands or Bubble.
Some players have been surprised by these apparent flaws—even players who have been eagerly awaiting WoW Classic's release based on fond memories of vanilla WoW. In truth, it has been so long since WoW first released, players' memories may not always be accurate. Some details might be fresh, but others might be lost in time, and it's those lost details that could surprise players revisiting the original experience in WoW Classic.
That's not to say that everyone has an unrealistic vision of what vanilla WoW was like. There were already plenty of people on the WoW Classic forums pointing out that perceived bugs are just recreations of the original game. And as noted before, a flaw to one player is a key component of the original positive experience to another. WoW Classic will surely please plenty of purists in spades. But this goes to show that it won't be for everyone who has fond memories of the game circa 2006.