
I’m guessing they are planning everything. From the official minecraft article :
Now we’re actively working on Vibrant Visuals for Minecraft: Java Edition and our goal is to bring it to the game in a way that serves not only our players, but also our modders and resource pack creators.
https://www.minecraft.net/en-us/article/minecraft-vibrant-visuals
Yeah it feels like they tried something different. With the first one, all the big ennemies were underlings of the Lady. Here, even though they inhabit the city (except for the hunter), they are not linked to the Thin man. It’s a bit confusing.
But overhaul the game is still really good and scary. IMO being chased is one of the scariest thing, so stressfull.

To be honest the official minecraft article contains more information and is in my opinion better written.
https://www.minecraft.net/en-us/article/minecraft-vibrant-visuals