That’s cool! You do you!
I just personally love how the covenant creates differences amongst my characters of the same class. My nelf boomy/resto is definitely a fae, but my Kul Tiran guardian druid feels thematically at home amongst the necrolords. Cosmetics and theme aside, both of the covenant abilities and the soulbinds contribute to this feeling. It wouldn’t feel as impactful if it was just a talent you could swap at any rested area.
And yes, the night fae mog is pretty darn top-tier.