So if someone is flipping between, "My grand-daughter was abused to the point of need counselling and removal from her abusive 'mom'." to the grandchild was "never abused" I wouldn't allow this person around minor children of mine either.
Neither would I which I think was clear from my previous post, if that was the case.
Re "the old question", I missed that part of your post or at least forgot it. I think if the daughter was asked that question, her answer, within the context of her perpective, would be very robust! In this case I don't think reconciliation of any sort is the key issue, I think the needs of the children are the key issue.
As I said previously this is a painful time for the OP and for her daughter. But most of all it is the pain of the children which is the key issue
I hope the OP has found food for thought on this thread.