The main point is JokeZ is slowing down in it's noblements which means slower growth. While Rx4U is increasing it's noblements and even though it is slowing down with taking villages from JokeZ it is instead crushing JokeZ's allies (except for TA*). Rx4U is winning the war from every standpoint especially from a moral standpoint since they have gotten the word out about JokeZ ability and now other tribes are taking their pickings of JokeZ.
One bad thing for Rx4U though is that Butcher Knife for some reason has rejoined JokeZ. I thought he has left for SIKE but I guess that was not for long.