Since sacrifice? You sure, you played all quests? + New War coming soon
so we talking about NPC wings (cuz ephemera looks like real wings)? In that case, neon wings looks pretty logical in neon city - it looks like neon signs, cuz it literally neon signs. If you hate it, you can simply wait 2 weeks until event is end. That's the problem of warframe community - we start hating unreleased content. Maybe DE should stop streams?