Current State of End-Game Contents - A Blog Post from A Japanese Player

[Yukiko]

Team jump rope is why everyone I know in RL that had this game cancelled their accounts. Team jump rope requires no ability to adapt or think. It could be done by a bot program.

One negative thing, yes, but not the only reason why players are leaving...
RNG and grinding are 2 other points very high ranked when asking players who had left.