He was referring to the relic slot as an animated piece as if it was a shirt or tabard slot.
We did though have a relic slot but as an item that gave some benefit.
Like
-Devotion Aura is increased by 54 points
-Crusader Strike grants x ap stacking to 3 times.
-Flash of LIGHT heals for 56 more
Etc , there was no visual
While a Libram would be amazing to have on your paladin, if one class has it then they'd have to make something for all other classes.
That having been said, I want one! I've felt Paladins should have one since I played Wc3.
Those visual items that we were supposed to get were transformed into artifacts and their other styles. You got yo librams, hunter got quivers.
Gotta wait till next xpac to see more animated things.
Be grateful for new 3d armors and many artifact skins ppl :P
I remember Vanilla Paladins would do this EPL quest that gave you a special quest item ray gun to get rid of some spirits. Most of us kept the quest item and never completed the quest just to fill that slot. Ah the good ole days.