Read what I wrote again - if you left your child with a babysitter and then all of those things happened, would you think the jury was right to let her go?
There is no evidence of a murder so you can’t convict her for murder. A babysitter would get kidnapping. A mother would not. A mother will have child evidence on her and the child will have mother evidence on her. That’s understandable.
If you go to a jury and say “We think the child might have possibly been murdered”, the defendant walks. You have to have prove there was a murder FIRST.
That’s why the defense went with the accidental drowning defense. It put doubt in the jury’s mind.