Okay...
If it weren't for the financial hardship that this situation could wreak upon the young mother and her child, I would say that it is the best thing that could happen to her.
If the grandparents are forbidden to see the grandchild, then THEY CAN'T INFLUENCE HIM TO BECOME A JEHOVAH'S WITNESS.
It is unfortunate that this causes financial strain. On the other hand, is there a good-hearted Christian church in the area - Baptists, Lutherans, Anglicans, so on - who might be able to help?
T'would be a black eye to the Jehovah's Witnesses if ANOTHER church showed TRUE Christian charity and helped the young lady and her son...
Zid