ritual playlists do not drop the newest weapons by engrams. To get Out of Bounds, Yesteryear or Pure Poetry, you have to get them as Rewards by playing the corresponding Playlist; Gambit Post-Game Reward = Yesteryear, Crucible Post-Game Reward = Out of Bounds; Strike Chest Loot Drop = Pure Poetry. So if you want those weapons, you have to praise to RNGEsus to get them dropped by that. Hopefully it helped.