My mother had her first seizure last year in September at the age of 74, second just before Xmas and several since. She has only just had her diagnosis of atonic epilepsy after an EEG, a sleep deprived EEG, an MRI and various other tests, with all the waiting in between.
So roughly a year from first episode to diagnosis.
I understand the parents feelings, they want someone to blame, someone to hate, somone to pin all their grief on and they dont have that now. If it was a tragic accident then it's senseless and agonizing and there is nothing at all that could have been done differently to prevent it, they are going to struggle so badly with that. They have put their grief on hold in a sense for a year in order to wait for closure and they are never going to get it.
But that doesnt mean that an innocent woman should be pilliaried, in order for them to have a target to blame.