RDR 2's world is by far the most immersive I've explored in a videogame. The crazy attention to detail combined with all the small, unmarked things you can find/witness are amazing. I love the mini events too, even if some of them repeat eventually (but for me, it took playing up to chapter 4 to actually notice that) the dialogue and context is different.
It has several smaller emergent moments, but yes... that isn't the focus. It's not a very dense world, and it's grounded in realism, so of course it makes sense that you don't have freaking bears interrupt gunfights. Far Cry 5 is a crazy, arcadey, over the top and honestly very janky action movie. I love it, but I also do not want my slow burn western simulator to take any cues from it. I mean seriously, go hunting in both games. The animal behaviour in FC is almost non existant, they're just blobs waiting to be slaughtered. It's fun in a way, but very shallow. Hunting is just a means to an end, to tick off some challenges to get skill points. In RDR 2, hunting could very well be its own game. Animal behaviour is advanced, there are multiple gameplay systems at work, and you have to actually work for your kill. Even a badly placed shot can result in immense sadness as you watch the animal limp away, clearly suffering from pain.
I'm perfectly satisfied with small emergent things like capturing some random guy who escaped from prison and taking him back to the sheriff's office for a small reward or helping some random dudes building a house and then coming back a few gameplay hours later only for them to thank me as I pass by for some random reason and see the progress they've made so far.
Or, when you have a party at your campsite and Arthur joins in the singing if you stick around for longer. Smaller, but very striking stuff. Frankly, no other developer does anything like this. The camp alone with all the unique, organic interactions, like when random bypassers join in mid conversation deserve an entire thread on its own, tbh. It's crazy stuff.
Trying to underplay Rockstar's achievement by claiming it's all just brute forced (lol) is kind of eye rolling to be honest.