That is not even vaguely the same thing. Asking if you can play a subclass and the DM saying yes is very different from trying to use the old subclasses with the new cleric class.
Trying to integrate cleric subclass from a previous book into the new Cleric class would take work. The first...
My preferred terms are Ancestry and Heritage. Both have been used by 3rd parties already and I am happy with either.
But WotC are already using Ancestry as referring to the specific type of ancestor you are descended from within your species. All of the new species in the latest playtest have...
Barbarian: Path of the Totem Warrior 49
Bard: College of Lore 46
Cleric: Tempest Domain 26
Druid: Circle of the Shepherd 31
Fighter: Battle Master 45
Monk: Way of the Kensei 40
Paladin: Oath of the Ancients 49 +1=50
Sorcerer: Divine Soul 14
Ranger: Gloom Stalker 48
Rogue: Thief 49
Barbarian: Path of the Totem Warrior 48 +1=49 Not my favourite Barbarian but they are powerful, I do like them and I like playing Barbs.
Bard: College of Lore 48
Cleric: Tempest Domain 32
Druid: Circle of the Shepherd 36
Fighter: Battle Master 48
Monk: Way of the Kensei 41
Paladin: Oath of the...
@DND_Reborn - doctorbadwolf voted before see so the votes were correct before your post.
Barbarian: Path of the Totem Warrior 52
Bard: College of Lore 49
Cleric: Tempest Domain 35 + 1 = 36 my favourite subclass on this list.
Druid: Circle of the Shepherd 40
Fighter: Battle Master 49 - 2 = 47...
Divination 3 + 1 = 4 probably futile, but my Divination magic told me this outcome was likely. Can't actually have good subclasses win now can we?
Enchantment 10 - 2 = 8 hopefully we can avoid having the worse subclasses winning. Your charms don't work on me...
Divination 14 + 1 = 15 The best of those left in the field
Enchantment 13 - 2 = 11 Affecting people's minds is best left to those that are charismatic enough to talk their way out of trouble. Leave it to the bards.
Bladesinging 10 + 1 = 11 Only have to survive 2 more eliminations to make the top 5. You can do it!
Enchantment 22 - 2 = 20 want to be charming? Better to be a Bard with the Cha to back it up.
War Magic 21
Obsolescent means "becoming obsolete". So what I said is correct. Custom Lineage does not make them obsolete and it also doesn't contribute to racial feats "becoming obsolete". It doesn't make them any less relivant.
Your views on RAW are not relivant to whether Racial Feats are becoming...