True, simplicity goes a long way in post-2000 3d games. Even in games where there's complex entity hierarchies, it often has to be collapsed into a flat structu

True, simplicity goes a long way in post-2000 3d games. Even in games where there's complex entity hierarchies, it often has to be collapsed into a flat structure when added to render queue (for things like transparency sorting). "Flat lists of things" is also pretty much also the foundation of ECS/DOD.