It’s funny, this is the sort of harshness and absolute certainty Jen would have come out with. Nothing is certain but my opinion given the outcome is that it definitely did not help.
I've seen lifelong schizophrenia triggered by nothing more than a bit of binge drinking. For some people it takes trauma to trigger bad things, some drugs, some have luck and manage to go through life with such a thing without ever experiencing it. Powerful tool, nothing more, nothing less.
Sorry for your loss.