Good for you saying something.
When the Panorama programme on paedophilia amongst JWs was shown I didn't believe a single bad word that was said about the society and although had always enjoyed and trusted Panorama prior to this episode I stopped watching it I was so disgusted with them.
Nothing in that programme made me question the religion I was in and the only difference it made was to keep a close eye on my girls around the brothers.
Once out I revisited that programme and watched it again knowing that what was said was the truth. It helped in my escape and in the same way anything said now to someone still in may appear to have fallen on deaf ears I know once some-thing like that is in your head, it doesn't leave.
She may do nothing now but if something else crops up she may decide to research it then and if you hadn't said anything she wouldn't know where to even start.
You did a good job.