Yes, this is still a thing, contrary to so many games dropping support for it. Whether it's a desperate bid to optimize (like Halo 5: Guardians) or just cut due to rushed schedule (like Killzone: Shadow Fall), local co-op has been getting the short end of the stick between now and the end years of last-gen. That needs to stop.
We need local co-op games, and not just 2D games and indie titles. Halo was born on local multiplayer matches, and Star Wars: Battlefront let console gamers play together online without a hitch. Friends could play games together both online and offline, but more and more that feature is excluded, and it hurts consoles in general.
The more games you can play alongside a friend and enjoy, the more you'd want to have them on your own. It's just not the same experience, swapping the controller back and forth. Yes, you might have over a hundred players on a massive battlefield with AI opponents and amazing scripted moments, but you're failing the oldest mode of multiplayer in existence. Give us a reason to buy a second Xbox One or PlayStation 4 controller.