You're right. When that little girl's mother watched her baby's coffin lowered into the ground, she was probably over-emotional and had no consideration for the needs of pit bull owners.
She should be slapped.
I’m sure her mother had no considerations for anybody at that point, but was probably absorbed in the moment at hand. Having said that, if her daughter had been killed in a reckless driving accident, I would not expect her mother to have much consideration for reckless drivers either, but I would expect clear thinking people to not demand laws banning cars.