Try showing Natlan's music/soundtrack to your friends who don't know or know little about Genshin. And then ask them to choose which element theme/vibes/nation the music is associated to, without them knowing the title or not knowing that it's from the Pyro nation. I think their answer would be most likely NOT Pyro, they probably choose Hydro, Geo, or Dendro.
Because in my opinion MOST of Natlan's theme and soundtrack are jungle, natural, and forest themed. It would lead people to think that this is something that usually comes from Dendro nation without them knowing the full context. It's not something you expect coming from a Pyro nation, except some maybe who sounds "fiery" or intense but I guess it's just a few. The Hydro tribe especially, it's theme are very tropical, beach and sea related so people would almost always conclude from their music that this is Hydro themed. I guess this is not a surprise since Natlan has six different tribes and the five of them are associated with other elements, even more so then the Pyro element itself. The Flower-Feather Clan are a mix of Anemo-Pyro tribe in my opinion based on their aesthetic.
Disclaimer:
This is not a criticism to Natlan's aesthetic, just Interesting thing I want to talk about and I'm wondering if people think the same way.