Why aren't there more speed runs for other missions other than the intrusion, like kids' playground or a farewell feast? How about killing one of every enemy (excluding the final boss)? Die as fast as possible? What about Shelter, where you go into a shelter as fast as possible

Intrusion is in roughly the middle of the game. and i think all mob types killed is a good idea but the die as fast and possible and shelter dont sound 2 appetising