I would argue that major studios largely have, or at least stagnated. Cards and skins are now the priorities and everything else is designed to support that.

A lot of games have wind effects, with moving vegetation, particles and fabrics for example.

Whether or not it appears in a game will usually be dictated by budget: both hardware budget (usually dictated by the current console generation) and budget for content creation.

A scene like this probably leaves it out because they felt like they could use that budget better elsewhere. There are a ton of characters walking around this scene, and also a ton of geometric detail and texture detail. I am guessing the directors for this scene felt that was more important to allocate budget to, for wow factor in those areas, rather than subtle wind effects which would probably go unnoticed in a game where you spend very little time stopping to appreciate the trees and flowers.

edit: I have to take that back: actually if you look at the full resolution video it's clear they included subtle wind effects, as well as details like falling leaves

I did notice the falling leaves which I thought was a nice touch. I didn’t notice any wind but I did watch the video on a iPhone screen so it’s possible that the wind effects are so subtle as to not be noticeable at small screen sizes.

If you watch the YouTube version which is longer linked elsewhere in the comments you can see the trees moving, as well as things like awnings

Far Cry 2 did a lot of specific things to accomplish its vision and those have been abandoned as out of line with other games'vision. The fire mechanics, minimap, and healing mechanic are the ones that jump out at me

Just because someone does something doesn't mean everyone else gets it for free. It takes effort to implement in every single game.

Maybe if Ubisoft had licensed out the Dunia Engine