Going by the article the authorities in Japan decided that she didn't need an official punishment, so in this case they don't seem to think it matters what her

Going by the article the authorities in Japan decided that she didn't need an official punishment, so in this case they don't seem to think it matters what her charge was since there wasn't enough evidence to make a case against her. And if someone has done something so terrible they can't be allowed to eat well or get a good nights sleep then the case shouldn't be dropped lightly.