What would you do in this situation?
Your team is losing at this point, and the enemy team is at your nexus. Do you... sit in spawn and not even bother them in order to preserve your KDR? Or do you go out and try to kill the enemy and risk another death for another chance?
I personally go out, even if it means I might get an extra death a few moments before the game ends, as there's always a chance to push them out and continue the game. I often notice others not even bothering to leave spawn, spamming taunt, laugh, or emotes till it ends.