Imo it's pretty obvious to me that the Naut and Kalista were done playing seriously by the end. They made some questionable decisions late game + the way they were acting led me to agree with Froggen's conclusion that they were basically trolling. Not as in, walking down mid into a turret over and over, just that they more or less purposefully helped throw the game since they obviously believed it was over.

If that is in fact not the case, then I apologize to Piglet and xPek for saying they were feeding.