I'm happy with the nerf.
I just wish it made more thematic sense, and didn't feel so shoehorned, not just with LOL DRAGON IMMUNE FOR NO THEMATIC REASON, with with little other things, like the Poison relation clearly pushing the 'Nature Spirit' angle, as well as Fairy moves being NVE on Fire... but it's not weak to Fire because Fire is already a very strong offensive type and dosen't need more.
Like Grass is a weak offense type, so although a Grass Resist would make perfect sense, it dosen't have one.
And U-Turn spam, so it resists bug, despite me thinking the opposite makes sense, because bugs consume nature.
Especially since Gamefreak are rebalanceing types and changing the chart anyway. Why not make Ice resist Dragon, for example? Or hell, Fire could be a good Dragon resist, and we all know defensive fire and ice types need help. There are other answers than just throwing a random new type in with a senseless outright immunity.
In fact, I'd probobly have slightly less beef with 'Fairy' if it was called 'Mythic' or 'Lunar' [Since moon-based moves seem to be retconned into Fairy, and Dragons are lizards, therefor Cold-Blooded and less active at night. Hell, their nuke move is called MOONBLAST], because then it would be less... random feeling, and wouldn't feel like having the 'Nature Spirit' associations.