In the same way that BioShock, Lineage II, TERA, Tekken 7, Mass Effect, etc. are just an Unreal Engine mod.
Really. On the live stream there was a bug where the Dragonfly cutscene was played twice, the worm disappeared just before the camera pulled back into space, then you got the splatter on the screen, and then it jumped back to the worm sequence. The second pull back sequence did not have the splatter on the screen.
In fact, here: https://www.youtube.com/watch?v=XuDj5v81Nd0&t=6855s
You can see the dev console pop up, then the worm shifts into a new location. That is where they cleaned up the video and removed the bugged sequence. Notice the lack of splatter at the end.
Try harder next time.