I agree with the last reblogger who said this is probably a deliberate show of status, and I think it makes sense in universe.
A hundred years of war and superiority ideals will not leave a country easily, and no ruler is able to rule entirely by themselves, or to change systems overnight.
If Zuko wanted to introduce meaningful and lasting change he’d need to learn how to work the maze of politics and the politicians, and that’d also mean speaking a language they’d understand. Presenting himself as powerful and worth following — though with different values from his predecessors — would definitely be a necessity.
“Rebranding” may seem like a high cost, but the cost of operating with appearances that send a message that undermines your intentions are much higher.
I think it’s worth noting that we interpret this scene with western eyes. In the modern West, the cultures tend to be a lot more informal, and even ceremonies have a less rigid structure, we’re also primed to be distrustful of anyone presenting themselves as “above”, and all authority is inherently seen as temporary and up for questioning.
That is vastly different from how Fire Nation culture is presented in the show. They have a very rigid hierarchy, are much more formal, and the rulers are validated by religious leaders and spiritual beliefs. This setup actually makes sense if you take those things into consideration.
I also really like that this room has a more “natural” feel to it.
In the previous rooms, the Fire Lord was implied to be in control of the entire environment, the rooms felt claustrophobic, even if they were large, because they were enclosed and decorated in dark colors, and the only light source was the fire, an element that also affects the temperature, and that the Fire Lord commands. The goal was clearly to show control.
In this new room, we have a spacious room, and it is flooded in sunlight. The designs on the columns resemble flames but they also resemble petals of a flower. There are fire basins around the throne, but they are not the main light source, in fact, their placement is more like what you'd see in an altar.
It reminded me of the episode of the Sun Warriors, where Zuko and Aang have to climb many steps to reach the place where the original benders connect with them, even the design of the dragon behind the throne is similar to the scene with Ran and Shaw.
It seems to me, like this is a room designed to invoke a different kind of authority, not of control or outright threat, but one that inspires awe and devotion.
It could mean the Fire Nation experiencing a period where spirituality has a greater influence, it could mean Zuko trying to bring back pre-war values, where fire is understood as an element of warmth and life, instead of destruction, like he learned in his arc.
Stepping out of the story, it's clear that many elements in the new designs of the movie are including more South Asian references. Avatar Sonam, the city of Jharana and the aesthetics of the Air Nomad Golden Age are clearly desi inspired. I'm enjoying it a lot, and I'm hoping they'll follow this pattern in Seven Havens.