Well, you might think so. Hearing about it might give you a sense of righteous satisfaction. But in a case like this, grandfather's criticism is unlikely to be helpful.
A WAH needs to figure out what HE WANTS for himself, beyond any guilting, beyond any "shoulds". The more guilt and shoulds piled upon him, the more difficult it is for him to see what he wants for himself. And only if the WAH returns because it is what he wants for himself will the M stand a chance of being healthy and lasting.