As of 1.4 Tiki and Spooky Armor have the same minion count, and Tiki gets immediately replaced by Spooky. But well, Tiki Armor is more of a "Minion" Armor so they can do the same thing like with Bee and Obsidian Armor, one is for +Minion DPS/-Whip DPS and the other is for +Whip DPS/-Minion DPS.Or at least a Shadowflame Whip... talk about an ironic enemy.
(Dont think Tiki shoild get it as it has higher summon count than Spooky. Spooky getting it makes more sense with the Dark Harvest, but its unlikely any will get it. Maybe they could reduce the Spooky summon count by 1 so it has 2 less than Tiki and then add the whip range/speed.)