Regular servers do not need instanced maps nor will it ever need it in the future.
GMS is not KMS. We do not have the playerbase nor will we ever will. The dynmaic between America and korea is completely different which is why Reboot is infinitely more popular and populated. I remember instanced maps were a bandage fix to overcome the overpopulation kms reboot had when they were under the "reboot>reg controversy"; it's clearly meant to invalidate frenzy early at the 260+ areas rather then the 300+.
This change will also directly affect the market because most players who actually play the game will be farming/training in 260+ areas. The lack of players, compared to korea, means the mesos generated will infinitely drop (people may also stop farming straight up) and most the mesos may be generated by the foreign meso farmers (cartel) who are farming esfera and selling meso because they are not affected by this change.
It was also recently found that soul erda fragments are account bound so frenzy totem will not affect the market when it comes to this.
Making monki world dictator was definitely the worse move ever!