Items get grandfathered in because they were obtained prior to an update making them unobtainable.Menkaure wrote: And don't use the grandfathered card, if that's the reason all this nea stuff is here then events shoulda been grandfathered in too because they were here before all of it.
Game mechanics don't get grandfathered in because that's just silly. If that was the case this shard would never have a single update.