I don`t have problem with it neither, imo smaller the place, funnier the show. but Yukafin talked during a MC that they`re trying to improve and reach more goals, not losing to other idol groups... this kind of speech. I can see the producers trying to make the group more appealing to larger audiences in near future since the veterans in the group probably won`t stay so much longer, almost five years by now...
there are rumors that they may add a new member in the next two one-mans, a local girl that works in Nagoya or Osaka. (would make sense, since they cut off the "east")