The fate system tries similar things, like destroying the supplies of beast tribes, but not very well because one person just solos it.

I think this is a good idea and it's something that can incorporate crafters and gatherers, a bit like with the Firmament.

I think that the direction has been to put most content into instances, most likely to make sure there aren't too many people. Instances provide better control over the amount of participation so that it doesn't become overcrowded and chaotic.

It's also a bit of a problem that if you do the beast tribe quests and the main story, you become friends with beast tribes. That doesn't stop fates but in a game that has allowed you to remove almost all references to opposing people who are now on your side by altering which NPCs appear during each quest, things like this could backtrack on that.

For interest here is a video https://youtu.be/CHSi5tHwosU