I wasn't a Vanilla player, but I've learned that all the original priest classes had special unique "race"-based abilities, for example, blood elves had "Consume Magic" and night elves had "Starshards". Basically, do you think they were a beneficial perk to the gameplay and possibly the lore? Would you prefer to bring them back, given the chance?
https://wowpedia.fandom.com/wiki/Pri...cial_abilities
https://wowpedia.fandom.com/wiki/Con...riest_ability)
https://wowpedia.fandom.com/wiki/Starshards
https://www.youtube.com/watch?v=JqOfELglfnQ