Come on, if you are going to have An Opinion, at least read the rest of the conversation
"the complete opposite" is functionally not a thing when Nightborne owe their future, and have large aspects, based on the marriage of arcane and druidism
War2 High Elves are describes as druidic, so there's a historical through-line that could be reframed
They are elves, so they are fully capable of druidism
They have a huge gash of dead terrain they have been trying to heal for years.
They have worked alongside druidic races for years.
You have to learn to separate from what you'd like, than what is possible. And if Tauren learned to be Paladins -regardless how you feel, those are facts- it's as likely that BE's could take up drudism; there are valid reasons for that.
When you say "makes zero sense" it either means you have not actually given it any thought, or that you are to biased to see the actual reasons. Do some self exploration.
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Yeah, it's the shapeshifting that would make it a harder sell for me; sure they could just learn it, but TBH I would really prefer something that makes more sense culturally than animal shapeshifting -and as I said before, aspects a la Hunter, or Farstrider, could be neat-
More-over, thinking specifically through nightborne, what if their default shapeshifting looked like the mask illusions in Suramar? "Projection" instead of "Shapeshifting" could fit the NB/BE culture and aesthetics much better, while mantaining the exact same functionality -and of course, customizable like any other arce through the barber shop-
I just love the idea of "Druidism" being used as a wider scope archetype, to allow more fantasy. If we get class skins someday, just imagine mech based "forms" for gnomes! I mean, Tinker as a class skin could work great; Astral powers are laser based, healing is either healing rays or alchemy, shape shifting are different mechs.