Given that alignment has been completely neutered in 2024 D&D (and it barely had any heft in 2014) I am not sure I buy it.Combined with the changes to humanoids using generic stat blocks modified by race, it seems pretty clear that this is in part a way to avoid the baggage of having humanoids innately tied to an alignment. Githyanki can be typically lawful evil if they're aberrations. Githzerai can be typically chaotic neutral if they're aberrations. Gnolls can be typically chaotic evil if they're fiends. Goblinoids as fey can be tied to an alignment in a way that feels iffy for goblinoids that are just folk.
Alignment is one of those things that has no reason to continue to exist and I would have though 2024 would have finally eliminated it completely. Instead, it's there but completely pointless.