This honestly doesn't remind me of Helldivers 2 at all. H2 had members of the dev team adjusting variables across worlds / adding new events so that the galaxy at large responded to the actions of the player community organically.
"Every campaign you play, there is meaning to it," he explains. "It's not just 'I've won that campaign, that was fun'. It's 'I've won the campaign. We have this territory. We've conquered this location, we are now able to push further into this area of the galaxy and play through that way. We really think it adds an awful lot of extra feeling, and kind of internal narrative for you as a player to try these things out."
This is literally just a dev describing the traditional Total War gameplay loop.