Do In-Faction Divides Serve A Purpose Anymore?
From the perspective of a casual lore-reader who has yet to get back into the hobby / game seriously, please educate me rather than disparage me!
I notice this with quite a few factions which goes against the more "mainstream" or perhaps competitive faction lines. I understand a bit about Keywords and which ones really matter and which are more flavorful but it seems that it's kind of a half-hearted solution for balancing or lack of homogenization for faction identity. I can see that maybe it serves to offer a bit of flavor for two of the four Grand Alliances but really it seems more like a lack of thought or effort to develop the faction. With Order and Death there are CLEARLY defined factions that each may have small subfactions within each faction / race but they are still usable within the same umbrella of the faction / race itself.
Idoneth have their Isharann, Akhelian and Namarti while you have the Kharadron Overlords with their Grundstock and Arkanaut (so far), or the Stormcast Eternals with their chambers (now reduced but still).
And for Death you have examples like Deathrattle and Soulblight Vampires which serve within the archetypal houses or Legions of the Soulblight Gravelords. And for Ossiarch Bonereapers you have the Mortisans and Mortek for now. I think you get the idea.
But for Chaos and Destruction (especially), each army / faction is pretty starkly divided within themselves to my knowledge. Orruk Warclans and Gloomspite Gitz have options to make mixed armies within themselves but they're never truly "okay" that way from what I've read.
Ironjawz do not mix well with Kruleboyz, while for Ogors I know that Beastclaw Raiders and Gutbusters do not mix well either. And for Gloomspite Gitz you really won't see Moonclan, Spiderfangs and Gitmob (Wolf Riders) mixing much etc.
Now this is from my perspective, maybe things have changed, but I still see the theme of Chaos and Destruction armies especially very divided. Does it serve a purpose as these two GA's general identities or is it because they have yet to homogenize these factions, like Skaven being another big one, under one big banner?
Personally, I think the divide between Beastclaw Raiders and Gutbusters needs to go, and the Everwinter can just be a piece of lore to work with rather than a dividing line. You should have Gluttons and Ironguts in the same army as Thundertusk riders and Mournfang riders IMHO.
(I get that Skaven are particularly clan-like and are actually supposed to be divided from within the faction, but it narrates the question)