Robert: the restart rule only applies to getting on the official DKF high score list.
The kill screeners list is different. It's "unofficial" and more relaxed. If someone claims a kill screen, we know them, have seen them play, and they seem kill-screen capable or have some other evidence, we'll generally put them on that list.
Jason's score here is not eligible for the official high score list (because he did not show the restart), but we know from his streams that he's good enough to kill screen, so he is OK for the kill screeners list.