I think it's more of due to the complexity of the game progresses. Because of its own definition, the shatter function may mess with how the main story flow and the devs had to write a bunch of complex sub-route just to handle one commands, so maybe the devs just won't bother with it anymore. Maybe we may have chance to use that commands again in main story route, but only for that route, and unusable for daily life.
Unless the devs are willing to go crazy and create many sub-route for every heroine getting shattered lol, I will gladly rooting for him if it is.