Who's the person at Nintendo that keeps on greenlighting Chibi Robo projects? Their budgets aren't too high obviously, but didn't the games sell pretty badly? Give me more Art Style.
The bit Generations/Art Style series sold better?
Plus it's pretty obvious with this game that they want to make Chibi Robo themed games even if they aren't alike anymore anyway. Mascots are always easier to push than a simplistic art series.