DM is a scripted event I wish to add one day, and BR could be a good option.
Yes it's possible for admins to organise, but admins also have a lot of things to deal with such as cheaters and the like, so having scripted events frees them up. It's also less stress for them, and is fairer, and more organised. It also allows for cool features admins simply can't do, like arranging people to jump from a plane to start a battle royale and parachute from the sky over San Andreas.